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Home > OnGuard Bulldog MINI DT 5015TC Bicycle U-Lock and Extra Security Cable
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OnGuard Bulldog MINI DT 5015TC Bicycle U-Lock and Extra Security Cable
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Show more by OnGuard
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- Double Bolt Locking Mechanism Delivers Up To 10 Tons Of Pull Strength
- Massice 13mm Hardened Ultra Steel Shackle Provides Maximum Cut Resistance
- Includes Five Laser Cut Keys 1 Micro Light Key For Nighttime Use And 4 Extra Grip Keys Or Four Digit Resettable Combination On Combo Models
- Has 24-40 Multi Position Quick Release Mounting Bracket
- Brand New And Rady To Ship
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Product Description:
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Double Bolt Locking Mechanism provides added strength by locking the crossbar to the shackle on two sides. Features 13mm ultra hardened steel shackles for maximun cut resistance. Dust covers and vinyl coating protects the crossbar, shackle and cylinder from damage. Includes multi-size/multi-position mounting bracket, (5) keys (1 with micro-light and 4 regular keys), plus OnGuard's anti-theft protection plan. LS: long shackle model for added convenience ATB: slightly wider shackle to fit around extra-fat tires STD: sized to fit most any bike on the market LM: Lean and Mean is the lightest full size U-lock on the market DT: includes four foot cable with lock loops on each end Combo: features user resettable 4-digit combination Mini: short shackle model fits in a back pocket
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Customer Reviews:
Add Your Own Review |
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 good tradeoff between security and weight, November 24, 2005
By K. Yasuhara (Seattle, WA)
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pros:
moderate weight: At about two pounds, this might be a lot heaver than your wimpy cable lock, but I think it's well worth the additional deterrence/security.
small size: Just enough to fit around your seat tube and through your rear wheel, which suffices if you subscribe to Sheldon Brown's method of bike-locking like I do (Google "sheldon brown lock strategy"). There's not much room left for prying. The included cable is just enough to get through your front wheel and frame and around whatever you're locking to. I usually can't quite manage getting around a fat telephone pole with the provided length, so another foot would be nice, but I've had no problem getting around lampposts and bike racks. If you'd like to get the U-lock (vs. just the cable) around whatever you're locking to, you should probably consider a model with a longer (and maybe wider U) shackle. You might manage to get this smaller lock around a bike rack bar and your rear wheel, but that's pretty tight.
can't be picked with a pen tube: I know from experience that the older Kryptonite locks and some other brands with round keys have this problem. OnGuard locks have a very different key design, and while I generally believe any lock can be picked, I expect OnGuard's locks to be fully pen-resistant.
keyhole cover: Another nice plus is the simple but sturdy keyhole cover that's easy to slide into place, even with gloves on.
key with light: One of the included keys has a little, amber LED in it, which is nice if you've locked your bike in a really dark location and have trouble finding the keyhole, but you really ought to avoid locking your bike anywhere that dark anyway!
scratch-safe surfaces: The only time I have to be careful about scratching my paint job is when the lock is open. The steel ends of the U shackle are (of course) uncoated, but otherwise, the shackle has a heavy rubber coating, and the crossbar has a plastic exterior that seems pretty sturdy and has held up well to over a year of usage. Nice, solid construction.
cons:
possible danger of bending/breaking key: You have to learn to be a little gentle with the lock mechanism. If you have the key all the way in, turning the key should be effortless. If you try to force it, the key feels like it could bend or snap (although I haven't done this yet). Luckily, the lock comes with several keys, in case you need to learn this lesson the hard way. Similarly, when locking, both ends of the U shackle have to be fully seated in the crossbar, or the key will not turn. Bottom line is to remember that unlocking and locking are smooth and easy if the key and shackle ends are all fully in place.
wimpy bracket tab: Although the Amazon product info doesn't suggest that this comes with a quick-release mounting bracket for frame attachment, the one I bought last year did. The plastic tab on the U shackle that slides into the mounting bracket snapped while I was riding, sending the lock into the street. I had the mount on my seat tube, and I think bumps caused the lock to bounce, stressing the tab in the bracket. The OnGuard site advertises a newer bracket whose lock attachment point might be sturdier, but if you insist on frame mounting, you might consider "hanging" the lock on the attachment point by putting the bracket on your top tube. Overall, I recommend carrying the lock in a bag, on a rack, or in a large pocket. (You could also stick it in the back of your pants, which I see some hip fixie riders doing around here, but I can't imagine that's very comfortable.) This was a minor concern to me, since I cycle-commute and almost always have a pannier.
Overall, I'm happy with this lock for medium security (i.e., not NYC) applications, and if used properly, you can generally ensure your bike looks a lot harder to steal than the others on your neighborhood rack. Consider adding a shorter, lighter cable to thread through your saddle rails, if you've got a pricey saddle.
79 of 81 people found the above review helpful.
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good tradeoff between security and weight, November 24, 2005
By K. Yasuhara (Seattle, WA)
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pros:
moderate weight: At about two pounds, this might be a lot heaver than your wimpy cable lock, but I think it's well worth the additional deterrence/security.
small size: Just enough to fit around your seat tube and through your rear wheel, which suffices if you subscribe to Sheldon Brown's method of bike-locking like I do (Google "sheldon brown lock strategy"). There's not much room left for prying. The included cable is just enough to get through your front wheel and frame and around whatever you're locking to. I usually can't quite manage getting around a fat telephone pole with the provided length, so another foot would be nice, but I've had no problem getting around lampposts and bike racks. If you'd like to get the U-lock (vs. just the cable) around whatever you're locking to, you should probably consider a model with a longer (and maybe wider U) shackle. You might manage to get this smaller lock around a bike rack bar and your rear wheel, but that's pretty tight.
can't be picked with a pen tube: I know from experience that the older Kryptonite locks and some other brands with round keys have this problem. OnGuard locks have a very different key design, and while I generally believe any lock can be picked, I expect OnGuard's locks to be fully pen-resistant.
keyhole cover: Another nice plus is the simple but sturdy keyhole cover that's easy to slide into place, even with gloves on.
key with light: One of the included keys has a little, amber LED in it, which is nice if you've locked your bike in a really dark location and have trouble finding the keyhole, but you really ought to avoid locking your bike anywhere that dark anyway!
scratch-safe surfaces: The only time I have to be careful about scratching my paint job is when the lock is open. The steel ends of the U shackle are (of course) uncoated, but otherwise, the shackle has a heavy rubber coating, and the crossbar has a plastic exterior that seems pretty sturdy and has held up well to over a year of usage. Nice, solid construction.
cons:
possible danger of bending/breaking key: You have to learn to be a little gentle with the lock mechanism. If you have the key all the way in, turning the key should be effortless. If you try to force it, the key feels like it could bend or snap (although I haven't done this yet). Luckily, the lock comes with several keys, in case you need to learn this lesson the hard way. Similarly, when locking, both ends of the U shackle have to be fully seated in the crossbar, or the key will not turn. Bottom line is to remember that unlocking and locking are smooth and easy if the key and shackle ends are all fully in place.
wimpy bracket tab: Although the Amazon product info doesn't suggest that this comes with a quick-release mounting bracket for frame attachment, the one I bought last year did. The plastic tab on the U shackle that slides into the mounting bracket snapped while I was riding, sending the lock into the street. I had the mount on my seat tube, and I think bumps caused the lock to bounce, stressing the tab in the bracket. The OnGuard site advertises a newer bracket whose lock attachment point might be sturdier, but if you insist on frame mounting, you might consider "hanging" the lock on the attachment point by putting the bracket on your top tube. Overall, I recommend carrying the lock in a bag, on a rack, or in a large pocket. (You could also stick it in the back of your pants, which I see some hip fixie riders doing around here, but I can't imagine that's very comfortable.) This was a minor concern to me, since I cycle-commute and almost always have a pannier.
Overall, I'm happy with this lock for medium security (i.e., not NYC) applications, and if used properly, you can generally ensure your bike looks a lot harder to steal than the others on your neighborhood rack. Consider adding a shorter, lighter cable to thread through your saddle rails, if you've got a pricey saddle.
77 of 79 people found the above review helpful.
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Good enough, June 25, 2010
By Adam
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Length:: 0:57 Mins
Quick video review of bulldog mini U-lock and cable
66 of 71 people found the above review helpful.
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Good enough, June 25, 2010
By Adam
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Length:: 0:57 Mins
Quick video review of bulldog mini U-lock and cable
61 of 63 people found the above review helpful.
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 Great except for the bike connector, August 6, 2006
By Guchi (Denver, CO USA)
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I bought this and works great, when locked but the key gets stuck when removing it as well the device that attaches to the bike does not feel well built and in truth is not. My u-lock twice fell of the bike while riding it and now it wont lock in place on the bike attachment. If you are a commuter you are better off just putting it in one of your panniers or leave it at work. But I due feel the u-lock as a whole is a very good lock and will prevent my bike from being stolen. I use Sheldon Brown's locking method.
16 of 17 people found the above review helpful.
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good tradeoff between security and weight, December 2, 2006
By K. Yasuhara (Seattle, WA)
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pros:
moderate weight: At about two pounds, this might be a lot heaver than your wimpy cable lock, but I think it's well worth the additional deterrence/security.
small size: Just enough to fit around your seat tube and through your rear wheel, which suffices if you subscribe to Sheldon Brown's method of bike-locking like I do (Google "sheldon brown lock strategy"). There's not much room left for prying. The included cable is just enough to get through your front wheel and frame and around whatever you're locking to. I usually can't quite manage getting around a fat telephone pole with the provided length, so another foot would be nice, but I've had no problem getting around lampposts and bike racks. If you'd like to get the U-lock (vs. just the cable) around whatever you're locking to, you should probably consider a model with a longer (and maybe wider U) shackle. You might manage to get this smaller lock around a bike rack bar and your rear wheel, but that's pretty tight.
can't be picked with a pen tube: I know from experience that the older Kryptonite locks and some other brands with round keys have this problem. OnGuard locks have a very different key design, and while I generally believe any lock can be picked, I expect OnGuard's locks to be fully pen-resistant.
keyhole cover: Another nice plus is the simple but sturdy keyhole cover that's easy to slide into place, even with gloves on.
key with light: One of the included keys has a little, amber LED in it, which is nice if you've locked your bike in a really dark location and have trouble finding the keyhole, but you really ought to avoid locking your bike anywhere that dark anyway!
scratch-safe surfaces: The only time I have to be careful about scratching my paint job is when the lock is open. The steel ends of the U shackle are (of course) uncoated, but otherwise, the shackle has a heavy rubber coating, and the crossbar has a plastic exterior that seems pretty sturdy and has held up well to over a year of usage. Nice, solid construction.
cons:
possible danger of bending/breaking key: You have to learn to be a little gentle with the lock mechanism. If you have the key all the way in, turning the key should be effortless. If you try to force it, the key feels like it could bend or snap (although I haven't done this yet). Luckily, the lock comes with several keys, in case you need to learn this lesson the hard way. Similarly, when locking, both ends of the U shackle have to be fully seated in the crossbar, or the key will not turn. Bottom line is to remember that unlocking and locking are smooth and easy if the key and shackle ends are all fully in place.
wimpy bracket tab: Although the Amazon product info doesn't suggest that this comes with a quick-release mounting bracket for frame attachment, the one I bought last year did. The plastic tab on the U shackle that slides into the mounting bracket snapped while I was riding, sending the lock into the street. I had the mount on my seat tube, and I think bumps caused the lock to bounce, stressing the tab in the bracket. The OnGuard site advertises a newer bracket whose lock attachment point might be sturdier, but if you insist on frame mounting, you might consider "hanging" the lock on the attachment point by putting the bracket on your top tube. Overall, I recommend carrying the lock in a bag, on a rack, or in a large pocket. (You could also stick it in the back of your pants, which I see some hip fixie riders doing around here, but I can't imagine that's very comfortable.) This was a minor concern to me, since I cycle-commute and almost always have a pannier.
Overall, I'm happy with this lock for medium security (i.e., not NYC) applications, and if used properly, you can generally ensure your bike looks a lot harder to steal than the others on your neighborhood rack. Consider adding a shorter, lighter cable to thread through your saddle rails, if you've got a pricey saddle.
Finally, check out some more information about this lock in an article on Slate. Google for "slate bulldog lock".
16 of 19 people found the above review helpful.
Was this review helpful to you?
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good tradeoff between security and weight, December 2, 2006
By K. Yasuhara (Seattle, WA)
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pros:
moderate weight: At about two pounds, this might be a lot heaver than your wimpy cable lock, but I think it's well worth the additional deterrence/security.
small size: Just enough to fit around your seat tube and through your rear wheel, which suffices if you subscribe to Sheldon Brown's method of bike-locking like I do (Google "sheldon brown lock strategy"). There's not much room left for prying. The included cable is just enough to get through your front wheel and frame and around whatever you're locking to. I usually can't quite manage getting around a fat telephone pole with the provided length, so another foot would be nice, but I've had no problem getting around lampposts and bike racks. If you'd like to get the U-lock (vs. just the cable) around whatever you're locking to, you should probably consider a model with a longer (and maybe wider U) shackle. You might manage to get this smaller lock around a bike rack bar and your rear wheel, but that's pretty tight.
can't be picked with a pen tube: I know from experience that the older Kryptonite locks and some other brands with round keys have this problem. OnGuard locks have a very different key design, and while I generally believe any lock can be picked, I expect OnGuard's locks to be fully pen-resistant.
keyhole cover: Another nice plus is the simple but sturdy keyhole cover that's easy to slide into place, even with gloves on.
key with light: One of the included keys has a little, amber LED in it, which is nice if you've locked your bike in a really dark location and have trouble finding the keyhole, but you really ought to avoid locking your bike anywhere that dark anyway!
scratch-safe surfaces: The only time I have to be careful about scratching my paint job is when the lock is open. The steel ends of the U shackle are (of course) uncoated, but otherwise, the shackle has a heavy rubber coating, and the crossbar has a plastic exterior that seems pretty sturdy and has held up well to over a year of usage. Nice, solid construction.
cons:
possible danger of bending/breaking key: You have to learn to be a little gentle with the lock mechanism. If you have the key all the way in, turning the key should be effortless. If you try to force it, the key feels like it could bend or snap (although I haven't done this yet). Luckily, the lock comes with several keys, in case you need to learn this lesson the hard way. Similarly, when locking, both ends of the U shackle have to be fully seated in the crossbar, or the key will not turn. Bottom line is to remember that unlocking and locking are smooth and easy if the key and shackle ends are all fully in place.
wimpy bracket tab: Although the Amazon product info doesn't suggest that this comes with a quick-release mounting bracket for frame attachment, the one I bought last year did. The plastic tab on the U shackle that slides into the mounting bracket snapped while I was riding, sending the lock into the street. I had the mount on my seat tube, and I think bumps caused the lock to bounce, stressing the tab in the bracket. The OnGuard site advertises a newer bracket whose lock attachment point might be sturdier, but if you insist on frame mounting, you might consider "hanging" the lock on the attachment point by putting the bracket on your top tube. Overall, I recommend carrying the lock in a bag, on a rack, or in a large pocket. (You could also stick it in the back of your pants, which I see some hip fixie riders doing around here, but I can't imagine that's very comfortable.) This was a minor concern to me, since I cycle-commute and almost always have a pannier.
Overall, I'm happy with this lock for medium security (i.e., not NYC) applications, and if used properly, you can generally ensure your bike looks a lot harder to steal than the others on your neighborhood rack. Consider adding a shorter, lighter cable to thread through your saddle rails, if you've got a pricey saddle.
Finally, check out some more information about this lock in an article on Slate. Google for "slate bulldog lock".
16 of 19 people found the above review helpful.
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 Excellent lock & great value., May 4, 2006
By D. Garrison (Maryland)
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This is a fantastic lock, especially for the money. Although it doesn't specify the lock does come with a carrying bracket. The bracket can be configured to carry the lock in the original upright position or you can undo 1 bolt and turn the bracket 90 degrees and lock it back down. The bracket tab on the lock itself can be positioned and locked down allowing you to carry your lock in a variety of ways.
As for the supplied cable it just fits through my front wheel and back through the U-Lock if I'm using my U-Lock through the rear wheel which is great in my book. Unless you use some extra Velcro strapping (1 is included with the cable) or some small ties you will have to carry the cable in a seperate bag etc.
The 5 keys are great as most lock companies only give you 1 spare key. The lighted key works extremely well. All 5 keys come together on a keyring with a "key-code" card attached so you can order more keys if needed. The keys seem a better quality then other lock companies use as they don't seem like they will snap at the slightest use.
You have to keep the key in the lock when inserting the U-Lock back into the locking mechanism or it will not go. The lock opens very easy, no forcing is required. You have to turn the key a full 180 degrees to open and close the lock. What else can I say, it's just a great lock and cable combo at a very nice price.
8 of 9 people found the above review helpful.
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This lock works great... mostly, September 9, 2007
By iradik (Seattle, WA United States)
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Ok, what's there not to like, fits in my back pocket, comes with like 5 sets of keys, good price, tough steel.. I love this lock. One caveat, the mount does not seem sturdy, so I decided not to install it. The key even has a led light built into it. One other issue is that the plastic on it sometimes loosens up so you need to remember to tighten it back, or it won't lock; this can be frustrating if you don't realize what is causing the lock not to work.
7 of 7 people found the above review helpful.
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Nice little system!, June 24, 2007
By bc! (rochester, ny)
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So upon becoming ridiculously attached to my first road bike, I decided to buy a decent locking system. I did a good amount of research and went with this little guy (also keeping funds in mind :)
It's worked great for me thus far. Sometimes I have to be a little picky as far as what I lock it to since it's a mini and the shackle is a bit smaller. However, I follow the Sheldon Brown locking system so I usually have no problem. Then I just loop the security cable through my front tire, then around what I'm locking to and then back to the lock. It's great!
Everything about the lock bracket is true though. It just feels really cheap to me. The last thing I want is to be riding around and have my lock falling off in the middle of a busy street. So I just toss the lock and cable in my bag. I've also put the lock on my frame while I ride and it's worked just as well.
Another thing I've noticed is that the crossbar only locks on the shackle one way. Sometimes I'll go to lock it and the key won't turn. So I just flip the crossbar over and it's fine. Not a big deal.
I definitely recommend this lock! It's perfect for the price. Or at least until you can save up for The Beast or a Kryptonite :)
7 of 8 people found the above review helpful.
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very good for the price, June 7, 2009
By carpenter (St. Louis)
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I have had this lock for a couple months now, and am very happy with it. I agree with others who say that the key is a little funky sometimes, but in practice, I've been careful not to force it, and have had no problems. I also use the Sheldon Brown method, though on my road bike, I can fit the U around my rear tire + the frame and bike rack, and still loop the cable to the front tire. I don't bother with the bracket, I carry the lock either in a bag, or simply with the cable slung over my back like a shoulder bag.
4 of 4 people found the above review helpful.
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Nice lock, but it's not the one in the picture, October 2, 2007
By Daniel McCuaig (DC)
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The image shown with this product is actually OnGuard's "Pitbull Mini," which is a step up from the "Bulldog Mini" on offer here. The true "Bulldog Mini," which is what you'll get if you order this product, is black and yellow rather than black and chrome -- look for it in the "other products you might like" sections of this page.
4 of 5 people found the above review helpful.
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 Cable only Looks Secure, November 29, 2008
By A. Hatch (Culver City, CA USA)
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11/28/08 - Buyer Beware: I had two bicycles stolen (over $1400 value) from my garage when a thief cut through a related product of same design OnGuard Akita 5080 Bicycle Security Cable (Lock Not Included) in one slice. Looks like they used a chain cutter. Unless you're using this as a theft deterrent or for low value items, don't fool yourself that you're buying security.
4 of 42 people found the above review helpful.
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Makes me miss my old Kryptonite lock, July 6, 2010
By martrom (Seattle)
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In terms of its utility there is nothing wrong with this lock. It's a nice balance of size, weight, and security. However, after a couple of days use I really missed my Kryptonite. It seemed better engineered in all respects. Most importantly, I would get stuck wrestling with this lock while locking/unlocking it. If it is not very firmly in place (it is more difficult to tell than with a Kryptonite, because the Kryptonite has the hook on one side of the bar to help keep it in the locking mechanism), you can't lock it; because the keys feel flimsy, I am worried about breaking or bending them. The keys are also much larger than the Kryptonite ceramic style, and I appreciate the minimalism of the latter (plus they are made of metal). Lastly, the frame brace places the lock slightly beside the frame, where it is guaranteed to rub against your leg while riding. I also seem to be smashing my fingers between the lock and frame trying to insert and remove it from the brace -- granted I will probably learn how to install and remove the lock without doing this. But in addition the brace seems plastic and flimsy -- and the vinyl fastening strap seems guaranteed to fail in a few years if it has to deal with any kind of weather.
This may seem hypercritical, but I suppose that is just because my Kryptonite lasted 12 years and I took its superb engineering for granted until I moved to another brand.
3 of 3 people found the above review helpful.
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 Don't Buy This, October 15, 2009
By Esse Doyle
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I bought this item for my freshmen year at college. It broke in about a month. The key got jammed TWICE! The first time I was able to dislodge it, and just had to use a new key, but the second time I wasn't able to get it out, and a maintenance crew member ended up breaking my key in half! This product is cheap. Pass it up.
3 of 3 people found the above review helpful.
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Goog lock, handy cable, April 18, 2009
By Back Bay (Boston)
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Don't toss the cable.
It's not short indeed. The cable does not have to go "two ways" like those with embedded locks. Just tie the cable around the front rim by pulling one end loop through another (the tip is on the product photo) and hook the "free" end to the U-Lock.
In most cases you can pull the cable through the rear rim as well. I'm using Sheldon Brown's locking method, the cable length could be even shorter for it.
3 of 3 people found the above review helpful.
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Bad thing., October 9, 2009
By Igor Kalmykov (Bethesda, MD)
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I bought it because it was prime delievery. Everything as previous bad revies happened - my key broken and lock dead on bench.
NEVER AGAIN!
3 of 9 people found the above review helpful.
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Goog lock, handy cable, April 18, 2009
By Back Bay (Boston)
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Don't toss the cable.
It's not short indeed. The cable does not have to go "two ways" like those with embedded locks. Just tie the cable around the front rim by pulling one end loop through another (the tip is on the product photo) and hook the "free" end to the U-Lock.
In most cases you can pull the cable through the rear rim as well. I'm using Sheldon Brown's locking method, the cable length could be even shorter for it.
3 of 3 people found the above review helpful.
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My bike was stolen using this lock, June 29, 2011
By KRH (Chicago)
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My brand new Gary Fisher Hybrid was stolen from the Metra train station on the north side of Chicago using this lock. I was locked to a bike rack with many other bikes at 6:30am. By 2:30 my bike and lock were gone. The thief must have cut or leveraged the lock open. This is a low crime, high traffic area, so I doubt the thief would have had time to make it a long project to get open - seems the lock was easy to get open. Just an FYI for those thinking about this lock in a big city. Also, the warranty is useless if the thief takes the bike and lock together. If your bike is stolen, you gotta hope the lock is left behind :(
2 of 2 people found the above review helpful.
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Dimensions not as specified, November 2, 2010
By James Rhea (La Mirada, CA)
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This lock is a quality lock with great keys. It's hefty, sturdy, and looks like it will last quite a while.
But be aware that the dimensions indicated here ("Product Dimensions: 9 x 8 x 3.3 inches") are not correct. The actual packaging with the product says: 3.55 in. x 5.52 in., or 90mm x 240mm. This is small than half the advertised size. I'm not saying the lock is bad. Just be aware that what you're getting may not physically fit what is needed in your situation.
2 of 2 people found the above review helpful.
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The keys are kind of ridiculous, June 9, 2010
By Not Your Concern (Best Coast)
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The lock itself? Great.
The frame mount? Not perfect but not aweful.
The keys? Ridiculous. I say that because there are several people right here on Amazon that profess to the keys being fragile. Then the documentation that came with the lock had all these scary warnings, like "BE CAREFUL WITH THE KEY", etc.
So I wonder.... why on earth make the keys out of mostly plastic? Making them out of metal would solve so many problems. Also the manufacturer probably wouldn't need to include FIVE spare keys, thus saving costs or at least offsetting the cost of all-metal keys.
And yes, you do need to be very careful with the keys --feels like they will break with a gust of wind.
2 of 2 people found the above review helpful.
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serves its purpose well, March 10, 2009
By sfbay (Berkeley, CA)
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This is the first "mini"-sized U-lock that I've purchased. After reading about the theory that smaller U's are more difficult for thieves to snap apart with hydraulics, I settled on this mini-Bulldog.
CONS:
Let's start with the cons, which are few.
- For those who aren't used to a mini size (like me), you'll find that you're a bit more restricted as to what you can lock your bike to. I knew that this would not accommodate wide telephone polls, but I have yet to find a street sign post that this lock can fit around; it simply doesn't have the width. If you commute in areas with plenty of bike racks, this is not an issue at all, but if you cycle in Los Angeles (where bike racks are more endangered than bald eagles), it becomes a bit of a hassle.
- My second, more minor gripe is with the length of the cable. I put the U-lock around the back tire and loop the cable between the lock and front tire. The cable is BARELY long enough to do this job. A few extra inches would make life a bit easier.
- Oh, and that flimsy plastic bike connector IS truly useless. Having read the other reviews, I never bothered installing it and simply lock the U-lock around the front head tube of my bike while I ride.
PROS:
- For the price, this seems to be one sturdy U-lock that'll be tough to break into. I have heard that Bulldogs are impermeable to BIC pens (though I've also heard that Kryptonite has changed their design to be ball pen proof as well), which is reassuring.
- As others have mentioned, the key has an LED that can be used for easier locking/unlocking in the dark. What's even better is the 4 extra keys that you get in case one snaps off. I have had the lock for over three months now, and I haven't had any problems with locking/unlocking, but perhaps it's because I'm simply being careful after reading what others have said.
- For small lock virgins like myself, the tiny size makes this mini-Bulldog very convenient to carry around.
- And lastly, that cable is great for looping around that front tire (albeit its short length)
The price is right for what you get. If you live in an area where there's a reputation for bike theft, I'd probably invest in a heavier and more expensive model. But for most suburban and urban cyclists, this will more than suffice.
2 of 2 people found the above review helpful.
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Good lock for the price, June 12, 2008
By Everyday Commuter (Columbus, Ohio)
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I bought this as a second lock. My first lock was a cable. I wanted a good U-lock and settled on this one. Well built, seems to be strong, good mounting system. The addition of a second cable (which I didn't need) was a plus. With this lock and my other lock I feel better about locking up my expensive bike. I gave it 4 stars because the cable could be a little longer, maybe 6' instead of 4'. But its long enough to secure both wheels.
2 of 2 people found the above review helpful.
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Great lock, May 12, 2007
By Bryan Prendergast (Chicago, IL USA)
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I bought this lock because regular locks would not fit on our mountain bikes. The area between the crossbars was crowded with a waterbottle. This lock fits very nicely in the small area, and the extra cable is worth its weight in gold. I easily lock up my back tire to a pole and loop the cable through my front tire and the lock. It's a great little system. I also bought a bike seat storage pouch for the cable. It conveniently stores away there.
Many people said the holder was cheap when I read reviews. I don't agree with them. Mine works great and is very secure.
I had one complaint. The lock I received was not the one pictured. Mine has yellow ends on the locking bar. I think the modle number ended in TC, but I believe it is the same lock. It works great.
2 of 2 people found the above review helpful.
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my lock was different than pictured, May 12, 2007
By H. Koh (chicagoland)
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When I bought the lock and cable, the picture of the dt 5015 was up, but the price was only around 25 total. Turns out that they had the dt 5013 in stock. The lock I got is rated by onguard as 3 + stars for security. I believe the 5015 is rated 4+ stars or something. I felt a little mislead by the false advertising, but I guess I saved a few bucks over the up-to-date pricing. Hopefully, if you order now you'll get the higher rated lock. Regardless, the mini lock size is great for securing your back wheel via the Sheldon Brown method, and the cable lends peace of mind for my quick release front wheel. The mini size supposedly makes it harder for the evil ones to insert cutting tools. I carry the lock in my bag since it's mini sized, so I can't comment on the frame attachment carrier that others felt mixed about. So, even though I got a lower rated lock, I figure anyone willing to take on a U-lock is going to need power tools and no amount of security locks is going to stop someone that determined. For the less than professional thief(outside NYC), the mini-U and cable are very strong theft deterrents.
2 of 2 people found the above review helpful.
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The keys are kind of ridiculous, June 9, 2010
By Not Your Concern (Best Coast)
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The lock itself? Great.
The frame mount? Not perfect but not aweful.
The keys? Ridiculous. I say that because there are several people right here on Amazon that profess to the keys being fragile. Then the documentation that came with the lock had all these scary warnings, like "BE CAREFUL WITH THE KEY", etc.
So I wonder.... why on earth make the keys out of mostly plastic? Making them out of metal would solve so many problems. Also the manufacturer probably wouldn't need to include FIVE spare keys, thus saving costs or at least offsetting the cost of all-metal keys.
And yes, you do need to be very careful with the keys --feels like they will break with a gust of wind.
2 of 2 people found the above review helpful.
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Don't buy this for the coverage!!!, May 20, 2011
By Brubzy (chicago)
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I was looking at a Kryptonite Evo Mini-7 W/Brkt 3.25 X 7-Inch with 4-feet Flex Lock and this lock. I bought this based on at the time the description said it had a $1,500 warranty and this lock was half the price of the Kryptonic which had a $2,000 plan. Since my bike was about $1,500 I figured the OnGurad would work. Well what it didn't say was they " offer" a warranty which you have to buy yearly ( $15 for 3 years) Had I known this I would have gone with the Kryptonic. I blame the seller who has changed the site and the company for not making it clear. ( I had to even call the OnGuard company to make it clear) And they don't cover the cable, just the lock, even though it's sold as a set. In the end you get what you pay for.
1 of 1 people found the above review helpful.
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great price, good lock, tricky to mount, April 13, 2011
By CS (DC)
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all in all I am pleased with this lock... it's super sturdy with the double-lock mechanism and I love that it came with the cable. great value overall. My main gripe is that if you install the mounting bracket, it is next to impossible to remove the lock without ripping some skin in the process. The mounting bracket is made of plastic and secures tightly to your bike, but for some reason the lock doesn't slide out easily after you press the release button. I have to yank it out and always end up cutting my hand on the plastic. I'm definitely using it correctly, but both my boyfriend and I experience this problem for both of our locks. Still is handy to have the mounting bracket, but be careful when you use it!
1 of 1 people found the above review helpful.
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Good locking system, good value., March 2, 2011
By Fun Bike Rider
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I'm very pleased with this bike lock system. After a little experimentation I found the right place for my U-lock on my bike frame, but I also use about a 10" velco strap to help keep it secure and in place. A bigger U-lock might be a bit more versatile, but I don't mind the small compromise because this fits well on my bike frame, isn't bulky, and does what I want it to do. I don't always take the cable with me, but when I do it's in my Camelpak, which I ususally have with me anyway. This is a very good locking system that I feel secure with.
1 of 1 people found the above review helpful.
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Great product for the price!, February 9, 2011
By T. M. P. (California)
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I've had this lock for a while and it still functions great. I use it to lock up my bike on the perilous grounds of a university campus and have yet to have a bike stolen.
I personally use the "Sheldon Brown" bike locking method, but a more general application involves locking the frame with the U lock and securing the wheels with the cable. Using the cable to secure the bike frame itself is not a viable means to protect your investments, as it can be cut rather easily. A u-lock on the other hand is hardened steel, which won't budge short of an angle grinder.
I'd also like to address the issues with the keys "breaking". Basically, the key will not turn and release from the lock until the U-shackle is securely and properly placed into the lock body. Therefore, the allegations of the locks being faulty and the keys being made of shoddy material are false. It arose from improper use of the product.
Overall, I really recommend this lock. It's a great value, but functions well and offers peace of mind.
1 of 1 people found the above review helpful.
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Good Price for a Good Lock, October 24, 2010
By Gary Brendle (Maryland, USA)
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I use this to lock my unicycle up at college. It's smaller than a lot of u-locks, but it gets the job done. I don't use the included cable but it seems to be of solid construction as well. I think it's a little ridiculous to include 5 keys, but it's much better than only giving you 1. As I don't have any place to put the plastic holder I haven't used it, but I agree that it is not very well made (all plastic) and I can see how it would break without much use. I carry the lock in my backpack and it doesn't make a noticeable difference.
1 of 1 people found the above review helpful.
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Good sturdy Lock, October 11, 2010
By Dechoe
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The best thing about this lock is that it is sturdy and comes with an extra security cable. This helps me as my bike has easy detachable wheel. So it helps to lock the front wheel (the back wheel is tougher to come out). My last bike was stolen due to a cheap lock. It was easily picked. Its been close to two months and I am glad my bike is not stolen yet.
1 of 1 people found the above review helpful.
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Works really well, October 11, 2010
By ap
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I use my bike for basic errands and so far the lock has been the perfect fit for all the bike racks I have had to use. It comes with a lot of keys so if one breaks or gets lost you have plenty more. It's easy to use and not too too heavy. I can fit it in just about every purse I use. I highly recommend this lock.
1 of 1 people found the above review helpful.
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great lock, great security!, September 30, 2010
By PandoraKid229
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This lock is simple, durable, and not very heavy! one thing about this lock is that the key which everyone in the review says. it doesn't feel as strong, it's not that weak, but just be little careful, dont' overdue it or over tighten and etc. i just feel like they need to reinforce the key hole and how u insert the key, that's it. but other than that it, should not be a problem, overall it's a great lock.
1 of 1 people found the above review helpful.
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nice, August 3, 2010
By jenniqua
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i haven't really utilized this lock too much since I've purchased it. however, the security cable comes in handy since all the parts of my bike are quick release and easily removed. i enjoy the mini's small size. the only iffy thing about it is that i still haven't figured out a way to attach the security cable to the lock holder so i have to put it in my backpack when i'm riding my bike.
overall, decent product, although the keys don't look very high quality
1 of 1 people found the above review helpful.
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Haven't had to worry about whether its "theft-proof" or not., July 15, 2010
By ©3$@L™ (Spokane, WA)
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This lock looks sturdy enough and was really fairly priced. The cable lock is long enough to reach through my front wheel and back to my rear wheel where the u-lock is attached. I like that this lock came with so many keys, three + one with an LED light. I know a lot of the previous reviewers said that they're were "easily" breaking keys but i have yet to even come close to breaking one. I think if those reviewers READ THE INSTRUCTIONS, particularly where it says to put the key in until it clicks....THEN TURN, the keys would never break. I also like that Bulldog provides a sort of insurance with it, up to $1,501 according to their website [...] for this particular u-lock/cable combo. My intention is to use this lock for commuting back and forth to college.
1 of 1 people found the above review helpful.
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Piece of mind on the cheap., January 31, 2010
By E. Salas (San Francisco, CA)
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After about 9 months of constant use, I've found this lock to be a solid theft deterrent as my bike has yet to be jacked. I live in San Francisco, a city with high bike theft, and this 1.5 pound piece of equipment is easy to carry--I loop it through the saddle, since the clip seems flimsy--plus the cable is plenty long to secure the front tire as well. This system comes with a sweet main key (plus 3 spares) that has a built-in LED light. Great lock: affordable, reliable, and light.
1 of 1 people found the above review helpful.
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Lives up to its name, October 30, 2009
By J. T. Stoltz (Juneau, AK)
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Solid little lock that would have lasted me a lifetime had I not left it in a cab one drunken night. The U-Lock fits in a back pocket, and I've never had trouble fitting it around frame, wheel, and pole. (It just barely fits fatter sign-poles, but it will-- if your frame is up against the pole.) Retails for $45 or so, so any price below that is a GREAT deal, especially with the extra cable. Give the U-Lock a squirt of WD40 every so often to quench its thirst.
1 of 1 people found the above review helpful.
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Amazing lock, size is a bit snug..., September 15, 2009
By Reynaldo Elias (Chicago, Il)
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This lock is excellent in all ways, except for one, it is a bit too mini for me. Now, I saw the description and dimensions before I bought it, so I had an idea of how small it was. I just got a bike with a larger frame, so locking the bike up with this lock is a bit harder. If i would have known this, I would have bought the larger model.
That being said. It is the best lock I have ever owned. It is sturdy as hell and has even been left in the rain, and the keys still turn perfectly (it comes with about 5 spare keys). The bike attachment is kinda flimsy, but it does the job. Oh and the included security cable helps take care of those times when I cannot get the U-lock to lock normally around my bike frame. One more thing to note, the lock is not extremely heavy, so you can put it in a backpack easily.
If you have a roadbike or other small framed bike, this lock is perfect for you.
1 of 1 people found the above review helpful.
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Bulldog Mini, April 15, 2009
By Patrick T. Addabbo (DC)
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PROS:
Strong, Lightweight (for U-Locks), nice mounting bracket
Cons:
Short (can't lock downtube and front wheel in the U-lock).
1 of 1 people found the above review helpful.
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Seems quite secure, November 19, 2008
By Verona (Portland, OR USA)
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The lock seems pretty secure, but it can sometimes be a little hard to turn the key when locking it. It seems like the U portion of it doesn't quite go in all the way. I also found that OnGuard's anti-theft protection isn't automatic or free (you have to download a form from their website and send it it with payment to get the anti-theft protection) Plus, they don't tell you this on the packaging. The anti-theft protection also doesn't cover anything if it is broken with the aid of a drill or other electric device.
1 of 1 people found the above review helpful.
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Tough Bike Lock, August 8, 2008
By Educator (California, USA)
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This is a hefty lock, but small in size and easy to use. The cable gives you added security for seats and tires. I recommend this highly.
1 of 1 people found the above review helpful.
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Weak cable, June 5, 2011
By Roman Rasskovskii (Woodside, NY United States)
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I chained the bike for only one hour at 10 am on Park Ave in Manhattan. The cable was cut and my bike was stolen.
1 of 2 people found the above review helpful.
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U-Lock stopped working, September 25, 2010
By Igor Ianov (Florida, USA)
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After second time going to the beach U-Lock stopped working, with luck managed to unlock after almost half an hour struggle, it useless now. Do not buy it!
1 of 4 people found the above review helpful.
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The plastic mounting bracket broke on installation..., July 12, 2008
By M. Khadir (Chicago, IL United States)
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The lock itself seems like it is good quality. However, I never had a chance to use the lock since, the plastic lock bracket, which mounts the lock to the bike broke on installation. As a result, I cannot take the lock with me when I go biking.
The bracket installation guide does not effectively show how to mount the bracket properly to the bike. Even after carefully following the installation instructions, the bracket kept sliding & eventually one of the plastic pieces broke.
Unfortunately, I purchased the lock in May 2008 on Amazaon and I didn't get around to installing the lock until July 2008, which is beyond the 30 day return policy, so I cannot return the lock.
1 of 4 people found the above review helpful.
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Bulldog Mini, April 15, 2009
By Patrick T. Addabbo (DC)
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PROS:
Strong, Lightweight (for U-Locks), nice mounting bracket
Cons:
Short (can't lock downtube and front wheel in the U-lock).
1 of 1 people found the above review helpful.
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Great product, hard to lock, August 26, 2011
By DIY Henri
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U Lock is very sturdy but is very hard to lock. Both my daughter and I had a hard time locking this. I ended up buying the regular size OnGuard Bulldog from the local bike store. That one worked well and was easy to lock.
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Great Lock for Reg Size Bikes, August 2, 2011
By cjc121 (St. Louis, MO USA)
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I bought a new Schwinn Cruiser recently & quickly found out this Onguard Bulldog Mini Ulock/Cable does not fit the bike frame & attach object. The Cruiser bike frame tubes are larger & spaced further apart. I had to buy an additional larger Onguard Pitbull LS Ulock as well but am happy with the 2 ulocks because I can lock up both wheels now.
Onguard Ulocks are the best unless you want to shell out big money for the most expensive Kryptonite locks.
So if you have a larger bike, like a Cruiser, buy the Onguard Pitbull LS Ulock & save yourself some shipping.
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Great lock = safe bike!, July 8, 2011
By T. CHEN (Los Angeles, CA USA)
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I love my bulldog mini u-lock! I like the mini one because it gives less leverage room for whatever cutters are being used to steal bikes (or at least that's the feeling it gives me). Sometimes it's a little frustrating when the only bike racks available are thick ones cause it makes it a little more difficult to lock (my road bike has the thick aluminum tubes. Even so, I'm still usually able to lock it up. Just takes a little more time), but if you have a normal thin-tubed road bike it should be perfect anywhere on anything. Don't count on the the mounting bracket though.. it's a piece of s--- haha; luckily the mini lock is just the right size to lock up under my seat when I'm riding. I haven't used the cable that came with it because the u-lock usually suffices for where I am, but it's definitely a nice edition that I'm glad I have in case I ever need to lock my bike up in more sketchy neighborhood. Overall, I'd recommend it to anyone else looking for a bike lock! :) Get iiit!
Oh yeah! And I like that they include like 4? 5? extra keys too!
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Super Lock!, July 7, 2011
By gaozilla
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This lock has been great! I've been using it for about 2 years now and it is still going strong. Just make sure to follow the instructions and NOT FORCE THE KEY if it feels like its resisting. The keys themselves are made of pretty cheap plastic, and my girlfriend's key was broken inside the lock, so that one was wasted.. but mine has been fine. Her lock wasn't all the way inside the cylinder because the removable lock holder on the "U" part of the lock was sticking out just a tad, and she forced the key causing it the break inside the lock.
HOWEVER.. if you use it properly, its a great size and weight to carry around with you without having to fear about someone cutting it.
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A good deal, June 19, 2011
By Ed W. (New York, NY)
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I got this for my City Style bicycle which I lock up at the subway each work day.
The cable is strong and I use it to lock my front wheel, I got a small 5mm cable to run through my seat and rear bike rack and connect them both to this lock using the Sheldon Brown method of U-Lock usage. ([...]
I liked this lock, but it turned out to be a bit short for my City style bikes rear tire with full fender.
I had to spend so much time jostling to get this around the bike rack and the bike. I do think this lock will work for many people and if I was willing to deal with the extra locking time needed I would still be using it.
But I have since upgraded to a OnGuard Brute STD 5001 Bike U-Lock It is a touch wider and a few inches longer and also thicker U shackle and the lock is also thicker. BUT this added strength adds weight and if your in lower crime zone, I'm in NYC so its kinda high, you could get away with a OnGuard Bulldog DT 5012 Bicycle U-Lock and Extra Security Cable which has the cable and is a little longer.
But having said this, I do like this lock and if you can deal with the short U shank its a great lock.
Sheldon Brown himself preferred the mini U Locks because it is much harder to get a jack in them to crack them open, no space.
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Fantastic lock, June 16, 2011
By Tillie Lamb (Peru, IN)
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After reading many reviews about U-Locks, I purchased this one. It was often rated as the second best lock. The very best was a kryptonite, but that one is out of my price range.
I use my bike for commuting to work, school, and everything, so it is very important that it be secure. Previously I was using a combo cable lock and it just I'd cringe every time I left my bike alone.
The perk of this u-lock is you can use just the U if you like, or use the cable to add extra security to your front tire. the U-lock allows me to lock my bike in spots in unusual places. Usually if you lock you bike to a sign, you can lift the bike over the sign and steal it. But with the U-lock there isn't enough space to do that.
-Heavy and heavy duty
-Large but doesn't leave too much empty space
-Comes with 4 extra keys!! (Somehow they know me!)
-Easy to use
After reading the reviews, I haven't mounted my lock to my bike yet. I'm a little intimidated by the process, so I've just been tossing it in my pannier. However, like I said, it's HEAVY, so if you can mount it, you should.
I'm very pleased with this lock. I haven't had any trouble with it at all and I feel very secure using it.
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No problems. Gets the job done., May 24, 2011
By N. Tadema (Austin, TX)
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I bought this lock for commuting in downtown Austin on a new $300 bike and have used it for about a month.
Having read reviews on here, I was a bit wary that there would be problems with the lock and key. Well, I'm happy to report that my lock has worked fine. Sometimes I have to jimmy the key a little to turn it, but it's not a big deal at all.
The lock itself is fairly hefty (I think someone said 2 pounds...sounds about right) and feels very sturdy. It also comes with a thin metal cable that you can loop through a wheel for a little additional security.
In short, all I can say is "so far, so good."
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All you need., May 23, 2011
By Kenneth Toyama (San Francisco, CA United States)
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Light & small enough to go in your backpack. Everything to secure both wheels & the frame. In a pinch you can use the cable to lock a friend's bike to yours as well.
The first one I bought had problems right from the start with the key being hard to turn & eventually breaking off inside the lock. The company offered to replace it after I contacted them via email. I then mailed the old one back & the new one came in about 10 days. The key turns very smoothly in the replacement lock & I have no problems with it.
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Great Quality for the Price, April 22, 2011
By Joe Miller (Gettysburg, PA, US)
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I purchased this lock as a more aggressive form of security on a college campus prone to bike theft. I have perfect confidence that this lock will prevent my bike from being stolen, even without the use of the cable lock. I definitely appreciate that this lock came with a holder which is attachable to the frame of the back. That being said, it is the only feature of the package hat I would like to see improvement. The instructions to mount the holder are not comprehensive, which may make proper installation difficult. Assuming I was 90 percent correct in installing my own holder, it still tends to make noise and move during the course of riding. Of course, that may be because I just didn't tighten it enough. All in all, this product has excellent value for what I paid for it.
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Sturdy, April 2, 2011
By Specialized9898
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For what you're paying, this lock is sturdy. I use it on my Topkick for city use and trust it fully. Comes with 5 keys and it easy to operate. I did find it a bit tough to mount the bracket somewhere out of the way on my bike, but am still testing to see the best place. If all else fails I can carry it in a backpack no problem. Decent lock, no need to look elsewhere.
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Didn't last long, March 3, 2011
By dunkalicious
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I bought this about a year and a half ago. The lock itself is fine, probably not big differences in security between this and other brands. But what really has disappointed me is that the keys are very flimsy (are the made of aluminum?), and if the lock is "sticky", as it is in the winter, it's pretty easy to just twist the key without turning the lock. I'm going to buy a different brand next time.
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Good lock & decent cable, anti-theft not so much..., January 21, 2011
By Conscious Consumer (CA USA)
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I ordered two of these and they arrived promptly. The Led key light on one lock was burnt out - kind of an inconvenience but not too big of a deal. locks seem good quality and the bracket seems decent - wasn't expecting much after reading other reviews.
The only let down i had was the anti-theft protection offer. I would recommend going to onguard site and reading the details if you want to use it. I thought it was included for free but they make it rather inconvenient to get - (have to print out the form, find original bike receipt or have them appraised and then pay 1-15 dollars for 1-3 years coverage & then have it all mailed in within 2 weeks of purchase - which after shipping gives you a little over a week). then in the fine print the theft has to fit certain criteria and the lock can only be cut by certain manual tools etc. - just seems like a waste of time to do all the steps and then hope in the event your bike is stolen the thieves take it in an appropriate manner.
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best value!, January 14, 2011
By y
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The lock alone would cost 50% more than what I paid and it comes with a chain which is a must if you want to prevent others from stealing you rims!
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Perfect, December 29, 2010
By Richard Roth (Sacramento, CA)
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The U-Lock is the perfect size to fit around your bike frame and a post. And the wire is plenty long to be looped through the U-Lock and the front tire, securing both tires. The clip that came for the bike is a little bit of a hassle, I found it very hard to remove the U-Lock from the clip at times. It holds in place well though, but be prepared for metal clinking noise as you ride from the U-Lock
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great lock., November 9, 2010
By hunter of love (Florida)
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I was a bit hesitant buying this lock because I was not sure how "mini" it would be, but it fits my needs well, as long as you are not trying to lock up two bikes to some bike rack or locking it to something thats thicker than... hmm I dont know, a coke can? it will work just fine, and even then it comes with the handle cable, which I am using for two reasons, both my wheels are quick release and I recently had my bike (my dear bike) stolen, so I'm doing all I can to avoid that, and this seems to be a good deter-ant.
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Great Value!, May 31, 2010
By Steven (New York City)
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A good strong bike lock at a very reasonable price. The DU lock fits around my rear tire and the pole I'm locking it to easily, and doesn't leave extra space for a thief to get leverage. The cable is nice and thick, and while it's not as strong a chain-link, it's more than enough to secure my front wheel.
I have not used the included mounting bracket, but it doesn't seem too great.
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Great mini u-lock, May 24, 2010
By C. Kessner
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I feel a lot more secure when I leave my bike in a public place now. This lock is fairly small & lightweight and without compromise. I can put this around my back tire, frame, and a fixed object, and there is not much room to create leverage against it.
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Great lock, exactly what I was looking for, May 13, 2010
By M. Smith (Cambridge On Canada)
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I recently Purchased a fairly expensive bike with, of course, quick release wheels. I've been looking for a lock I can feel comfortable leaving the bike with while I go into a store or to work, the gym, etc. With this lock I do not worry about the bike or any of it's parts not being there when I come back. I was initially worried about the smaller size of the lock. But so far I've had no issues finding a place to lock up even with the thicker tubing on my mountain bike. I carry the lock in a backpack so I can't really comment on the mount. So far I have no issues with the key or locking mechanism. As long as you ensure the key is inserted all the way and the U is fully inserted into the bar I don't foresee any problems.
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Take "mini" literally, May 9, 2010
By R. Maes III (DC)
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I recently purchased the Bulldog Mini lock. I've been using it for a few weeks.
The good: So far, no key jams or other malfunctions.
The annoying: The size. For urban street biking, the U of the lock is barely large enough to surround the wheel, mainframe and anchor poll. This is the only way one should secure their bike, so it's very important to me for the lock to be big enough.
In the coming months, I will most likely purchase a larger U lock so I won't have to worry whether my lock will be big enough to properly secure my bike.
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good lock for good price, May 3, 2010
By Nitscha
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I bought this lock after my last bike got stolen. I also bought the Kryptonite Kryptolok Series 2 Standard Bicycle U-Lock (4-inch x 9-inch) with 4-Foot Flex Cable to have two locks at night.
I use this one only as a second lock, because it is too small of course to lock my bike to something. So I use it to lock my rear wheel and I lock the bike with the other one to something. I use the cable to lock my front wheel and also to lock it to something.
I know, that this is really much, but my lock before was also not too bad and didn't work.
Now my neighbors are laughing and tell me that I will always keep the bike like this :)
During the day I only use the bigger one to lock my front wheel and the frame to something.
In total this is a really good lock for this price! I would buy it again! And I still have my bike, although I leave it outside at night.
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Small, cheap, secure enough so far., February 20, 2010
By David Gould (Oakland, CA)
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This is my favorite bike lock. It is small and light enough that I don't resent carrying it, while still providing credible security. Many bike locks also seem over priced, especially the K kind, but this one is very good value.
I use the Sheldon Brown system for locking up where the U-bar encloses the rear rim and a pole or bike rack bar or meter. You do have to get the bike snugged up against whatever you are locking too, which is sometimes tricky, but the good part is there is now no room to get any sort of jack or lever into the lock to pry on it.
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Great Lock!, January 23, 2010
By Dustin Brown
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After doing much research and reading many reviews online I decided to go with the OnGuard Bulldog MINI. I have now been using this lock for several months and can report have had zero problems with it. The extra security cable is much bigger and thicker than it looks in the picture. It really makes a huge difference. This lock is extremely sturdy and have had no problems what so ever. Would definitely recommend!
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Solid product, January 3, 2010
By John Miller (Seattle, WA)
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Have used this product for a couple years now. It's been outside in the elements continuously and while other parts of my bike have rusted its key mechanism is working great. The cable on the other hand has had some water get under the plastic coating is starting to rust. No indicators that it is any less strong, but I am a little surprised water got in.
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Good basic lock, November 13, 2009
By Albert Le (San Diego, CA)
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Good basic lock for commuting around school and downtown (San Diego). It's small and light but feels really sturdy. The lock fits around my mountain bike wheel, which is good since I was concerned the size was too small but it fits just right when locked around a bike post or fence, definitely not a pole though. The wire came thicker than I expected and is a nice extra deterrent, although I hardly use it because of the hassle and because I keep telling myself that no one is going to steal my front tire from my beat bike :). Overall, I recommend this if you're looking for a reliable lock with some extra deterrents, this is it.
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great lock for the price, September 7, 2009
By min pin mom (In the Desert)
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i don't live in high crime area but want a bike lock that i'm comfortable and feel safe with. This lock definitely does that.
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This lock is great, August 8, 2009
By Matt W
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This lock is a great lock at a good price.I like it because it is quite heavy duty and not too heavy in weight.Also the locking mechanism works quite smooth.In comparison I just had a Kryptonite New York Standard and the first time I used it the lock wouldn't unlock. And I ended up breaking the key off in it.What a hazzle to cut the lock with a power saw.For the price this is one great lock.And it does have a double locking mechanism.I would recommend this lock over any kryptonite.Fahgetabout kryptonite they suck.Believe me its not much fun when your key breaks off in it.Not to mention it costs twice as much as this one.But don't count on using the extra cable for anything.It's too short.I lock my bike with a 6 ft. cable lock through the wheels and frame and post and the On Guard Bulldog mini through the frame.Then I don't worry about someone stealing it at all.For 1 thing I never leave my bike locked long enough for them to cut through them.But even if it does get stolen which it won't I have it insured through my renters insurance.Now that gives me extra peace of mind.
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Great lock at a great price, August 1, 2009
By stretch (Philly, PA)
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This lock scores as well or better than the more expensive models, fits in your belt or back pocket, has a great quick key system and is pretty light weight. The rubberized coating on the cylinder started to scratch off after a few weeks but otherwise it's an ace. Lock the rear rim through the rear frame triangle and loop the cable around and through the front rim and you're all set.
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The right size, feels a little cheap, June 24, 2009
By jimmyfergus
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... but then it is cheap. The key feels a little clunky and cheap in the lock, but it works.
The lock is just the right size for locking most of the time. Search the web for Sheldon Brown's (a biking oracle) locking strategy page if you think you need something bigger.
Cable is plenty long enough to be looped around the front wheel, strung through the saddle and down to the lock on the rear wheel.
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Well Built Lock. Mounting Bracket is a Joke., April 15, 2009
By Event Photographer
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The U-Lock itself is very well built. One minor nitpick is that the keys could be smoother to operate. They provide you with a ridiculous number of replacement keys, which I suppose is nice. It even comes with 1 LED flashlight key.
The yellow ends on the U-lock are removable. Underneath them are what appear to be plastic parts recessed in the main barrel of the lock. I have some concerns about being able to smash those plastic parts with a screw driver and hammer, but hopefully that wouldn't compromise the locking mechanism.
The plastic frame mount broke after two weeks of riding. It's cheap plastic and in no way is actually engineered to hold a lock of this weight during city riding. So stick it in your belt or bungee it to a pannier rack.
Because of those concerns my next lock will be a Kryptonite Mini, it's more expensive. However it's still a lot less than a new bike...
The included security cable is a "Why bother?" feature. It's meant to lock your front wheel in place when your U-lock is holding the frame to a bike rack. It's in no way meant to secure your bicycle. However a much smaller lighter combination rope or necklace style lock will serve the same purpose and be much easier to cary. If you're going to be leaving your bike out in a dangerous area, the best bet is to just use multiple U-locks.
Overall, it's a great lock for the money.
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Very secure, extra cable is useful, key gets a little stuck., September 9, 2008
By Cheburashka (Chicago, IL)
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I would give it 4.5/5 if it was possible. The lock works great - even better if you pull off the useless yellow plastic caps on the end. The extra cable is useful for the front wheel. The key sticks a bit and is sometimes difficult to turn, but I have not broken it yet (and when I do, I have 4 more to go through, which is good to know).
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good lock short cable, June 23, 2008
By P. Fink (Syracuse, NY United States)
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The lock works great! Easy to lock and unlock, but the cable that comes with is a little short. I ride to work, and the rack they have is not fully visible to the public. So I was hoping this would be the one sollution for locking my bike. I managed to get the cable all around the bike and use the U-lock at the back tire to connect it all, but I have no extra to connect to the rack. Maybe if I had gotten a bigger U-lock I could connect there? Any ways we purchased a cheap cable lock to connect to the rack also.
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great, September 26, 2007
By ratatouille (Cambridge, MA)
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great lock...the best part is that the lock is small enough that you don't even need to use the brace; you can just lock it around the bike frame and it wont hit your bike wheel
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very pleased, May 19, 2011
By celeste
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So I ordered a bike lock but it wasn't what I thought, so I returned it. The company was wonderful about my return--a totally painless process. Everything was smooth as a baby's bottom.
0 of 1 people found the above review helpful.
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Ongard Bike Lock, August 9, 2009
By K. Schneider
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Good bike lock. I live in the suburbs so crime is not too bad. If I lived in a big city I might consider a better lock. Lock is made in China. Quality is just okay.
0 of 1 people found the above review helpful.
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Recommended by a lot of bike stores, February 9, 2009
By Spaghettiman (New York)
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Good heavy mini lock. The key is nothing like the typical pickable locks. it seems to be pickable. It seems the only way to break the lock would be to cut t The added cable is great and they give you 5 keys for the lock in case you lose 4 of them. My bike hasn't been stolen yet!
0 of 1 people found the above review helpful.
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Make sure you note that it's a mini., November 1, 2011
By Georgiy Chigrichenko (Pleasant Hill, CA)
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The Mini OnGuard Bulldog and security cable is a portable solution for the sequrity of your bike. The extra cable really helps in the effort to lock the bike. Sometimes for my road bike I wish I would have a longer extra cable, since the rail I'm attaching it to is not always very close, but I guess you need a non-Mini version for that. I originally bought this combo for my mountain bike and have no problems in locking the frame with the U-Lock and the wheels with the extra security cable (but not the wheel and the frame and the rail only using the U-Lock part which is possible with the non-Mini version). The U-Lock and and the cable could be fit in a normal size student backpack or can be attached with the mechanism provided to the frame of your bike and it won't fall off even if you sometimes go off the curb.
Security rating of this thing as rated on some sites is pretty high, as some websites that tested it vs. other similar products.
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Good and affordable product, a few cons though., October 9, 2011
By HonestReview
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I really like how sturdy this thing feels. I'm sure if anyone even considers taking my bike they'll just feel this bad boy and decide otherwise. I don't have too many problems with the key/key hole but there is one problem that gets kind of annoying. I'm not sure if this is a pro or a con to be honest, but the U part of the lock tends to get a little stuck to the bottom base of the lock. This makes it sometimes difficult to remove the lock from the base and it feels like a fight. This literally happens regularly. Feels scarry cause I'm not sure if it will get stuck. Why might this be a pro? Well a theif may simply give up on stealing my bike after a few seconds of wrestling with this, assuming he's found a way to pick my lock of course. It no longer takes me very long to get it loose since I'm pretty used to it so now it just takes me a few wiggles. But otherwise I am happy with the products and I'm happy to give it 4 stars.
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Good Deterrent for College Students, October 5, 2011
By Johnny G (IN USA)
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I have had this bike lock for about a year now. I have to say it is very wonderful for a college campus dweller. I have heard plenty of stories about nice bikes being stolen here on campus. Most people at college seem to use cable locks (about 70% here) because the cheapo bikes usually aren't messed with unless it's completely unlocked. I have never had any trouble with my bike WHILE the lock has been on. I stupidly didn't lock my bike for two minutes, came back, and it was gone. The next day our campus police thankfully found it (up in a tree...). I lock my bike from now on. Although sometimes people still try to steal it. Once I found my bike seat completely loose and turned around backwards. Someone had come by thinking that they could take off the seat and loosen the lock. Too bad for them it was actually attached to the frame, so they just walked off to find "their" other bike.
Lock easily fits around my frame and rear road bike tire, or the frame and a regular bike rack. I have not used the included cable yet because this is such a wonderful deterrent already! Buy this (you can find it on amazon without the cable for $20) and you won't regret it. I have not broken a SINGLE KEY in this lock because I never force the key to do anything it doesn't want. It is very easy to tell when the key is ready to unlock because it is a fluid movement to unlock this lock. I don't understand why anyone would try to force their way into the lock with a key. Take it easy, and it is very quick and easy to unlock.
The bike frame attachment is a little flimsy. The first month I had it, if the lock was "locked in," then I had to unlock the actual lock before it would come off the attachment. Now, all I have to do is tug and pull it off. It starts to get loose after a while, but I just tighten it back up. The bike attachment hook also becomes loose soon, but I now that can easily be fixed with a good super-glue. I attached the lock to the frame tube right below the seat so that gravity is helping keep the lock in the attachment
PROS:
Economically small and lightweight
Looks very sturdy (deterrent)
Five keys (the light on one is kind of a sham though)
Cable for the front tire and bike seat
Comes with bike attachment
A couple people have told me it looks good(just black - you can slide the dumb yellow rubber ends off)
Weather-resistant(bike stays outside for everything but northern Indiana winters)
CONS:
A little heavy for the back pocket, although it fits
Attachment is just a tad finicky because it is plastic. But it shows no sign of breaking any time soon.
Now I did a lot of consumer research before picking this one. This is a great buy. I wish bike locks were cheaper but they aren't. This is an inexpensive model that beats out most other bike locks and holds its own against Kryptonite's NYC Forgettaboutit models, which you're paying for a name, like Apple, when you can get an affordable and smaller Creative mp3 player...
If you need a good lock on a college campus, JUST BUY THIS! Let someone's cable lock be cut, not your Bulldog.
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This lock held up to an attack, September 12, 2011
By Mewmew2013
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The first thing you must realize about bike locks: locking up a bike is primarily for deterrence. It is easier to steal the unlocked bike on the rack than to cut through a cable; and it is easier to cut through a cable than a U-Lock. A determined attacker can usually defeat either.
When I bought the OnGuard Bulldog MINI lock, I used it diligently, and I was mostly hoping people wouldn't try to steal my bike. I was right - I had a crappy bike, and when it was locked, it definitely wasn't worth the effort.
Last month I upgraded and got a nice, new bike. A bike worth stealing, although it wasn't the top brand name or anything. I continued to use my OnGuard Bulldog MINI lock, which just barely fit around the front tire (skinny street tire), frame, and the bike rack. Not a week after I bought the bike, I go to unlock it one morning, and notice the lock was TORN UP. Someone had tried to cut it in about 4-5 different places - near the key entry, all around the U-loop, and on the bottom opposite the key entry. The lock held strong. The cuts on the U-loop went through the rubber but didn't scratch the metal underneath. The cuts on the lock left gauges, but it retained its shape and is still usable (the key catches a bit though).
I just ordered a new lock of the same type. Any lock that holds up to an attack like that has performed better than expected and is a good lock. Go ahead and throw away the thingy to mount it on your bike though.
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