OnGuard Bulldog ATB 5011 Bicycle Bicycle U-Lock

by OnGuard

Product Features

• X2 Power Double Bolt Locking Mechanism locks shackle on both sides
• M-Cylinder resists all attacks from picking, pulling or drilling
• 127mm (5.0?) wide crossbar provides more space for locking ATBs and scooters
• Hefty 13mm (0.51?) hardened steel shackle resists cutting, prying and jacking
• Rounded design and centered keyway eliminates pry points. 5 Laser Cut Keys, 1 with a LED micro-light.

Product Description

A wider crossbar dimension- 127mm (5.0”)- provides extra room for securing ATBs, and scooters. X2 Power Double Bolt Locking Mechanism offers best-in-class protection.

Product Details

• Product Dimensions: 11.5 x 7.2 x 2 inches ; 3.4 pounds
• Shipping Weight: 3.4 pounds (View shipping rates and policies)
• Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
• ASIN: B000FL3E84
• Item model number: 5011
• Average Customer Review: 3.8 out of 5 stars  See all reviews (12 customer reviews)
• Amazon Best Sellers Rank: #10,167 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
  • #19 in Sports & Outdoors > Bikes & Accessories > Accessories > Bike Locks > U-Locks

Customer Reviews

Most Helpful Customer Reviews

10 of 11 people found the following review helpful:

5.0 out of 5 stars Great Lock - Fraction of the Cost, July 22, 2009

A Kid's Review

This review is from: OnGuard Bulldog ATB 5011 Bicycle Bicycle U-Lock (Sports)

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.

4 of 4 people found the following review helpful:

2.0 out of 5 stars My bike was stolen., September 2, 2010

By 

J. Perng "J." (Washington, D.C.) - See all my reviews
(REAL NAME)   

This review is from: OnGuard Bulldog ATB 5011 Bicycle Bicycle U-Lock (Sports)

I will preface this by saying I didn't get this product from Amazon - I got it from a bike shop. And I actually had two. The first one kept sticking when I tried to turn the lock, and when I took it to the store in exasperation for a second time, the store exchanged it with another lock. After a few weeks, it wouldn't stay on the mount anymore. I began riding with it on my handlebar. Suddenly and quickly, it began to fall apart. The bottom lock part broke into two without so much as a drop - it just surprised me one day after I unlocked it. One night (on the week that I was supposed to buy another lock to reinforce), I locked my $500 bike to a sign, and three hours later, EVERYthing was gone. I swear it was not due to forgetfulness on my part. The lock must have given away too easily to those darn bike thieves.

Now I am left mourning, without even the evidence of a lock to send in for the anti-theft offer (which is one good thing they offer - just remember to send it in 10 days within purchase). I don't know why I had so many more problems than other people on this site, but I wanted to leave my two cents.

4 of 4 people found the following review helpful:

4.0 out of 5 stars Bang for the buck!, April 22, 2007

By 

buzzy0307 "buzzy0307" (Palo Alto, CA) - See all my reviews

Amazon Verified Purchase

This review is from: OnGuard Bulldog ATB 5011 Bicycle Bicycle U-Lock (Sports)

This is a very good lock in this price range. The rubber shield on the outside prevents rust and the light on the key fob is useful at night. The only downside is the key. You must make sure to insert the key all the way before turning, otherwise you might bent the key.