OnGuard Bulldog ATB 5011 Bicycle Bicycle U-Lock Review

Average Reviews:

(More customer reviews)This is by far the cheapest good lock you can get. The comparably priced Kryptonite is 1mm thinner and is 4"x8" to this lock's 5"x9".
If you're like me and commute or just ride to all sorts of places, then you've had the problem where the lock, bike, and post/rack fit really tight. You've probably scratched up your frame before or had to lock your bike further than you'd like to just to get it locked to something.
This is where this lock is superior to Kryptonite locks and many other manufacturers. The width of the "U" is 5" rather than 4". That extra inch makes all the difference. It was originally intended for people to lock front-wheel to frame/back-wheel on mountain bikes which are typically thicker in every way than road bikes.
Of course you can always buy the longer locks, but they're usually more expensive and much larger than needed. That extra 3" means it doesn't fit on tucked in my belt (without striking my bike wheel) and it takes up that much more room in my bag. And it still doesn't solve the problem of a wider frame and wider wheels in a tight spot.
There seem to be a lot of comments on the "coating" of the "U" itself. As a former mechanic, let me break it to you: the coating doesn't prevent theft.
The coating, much like the paint job on your bike is more of a deterrent for rust than anything else. And while a rusty lock would be bad, the nicks and scratches you'll accumulate on the plastic coating of any lock won't significantly damage your lock. All u-locks have plastic coating, and the superiority of one plastic over the other is pretty trivial.
Your concern should be:
* Size - will this accommodate my bike in a variety of situations?
* Thickness - thicker than a bolt cutter can cut through (13mm)?
* Key shape - is it round like a Bic pen? Can this be picked?
These are bike locks. They're thick bars of hardened steel that hold your bike to something secure. Once you have one, you're good to go. Kryptonite, Onguard, Master, Bell's, et al will require an electric saw or a Bic Pen. So you might as well get something decent, but you don't need extravagance.

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