On Guard PitBull U-Lock

by OnGuard

Product Description

Quattro Bolt Locking mechanism provides unequalled strength by locking the crossbar to the shackle on four sides. Features 13mm ultra hardened steel shackles for maximum 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 DT: includes four foot cable with lock loops on each end Mini: small shackle model fits in a back pocket

Product Details

• Shipping Information: View shipping rates and policies
• ASIN: B003UWFM4E
• Average Customer Review: 3.2 out of 5 stars  See all reviews (33 customer reviews)

Customer Reviews

Most Helpful Customer Reviews

7 of 7 people found the following review helpful:

4.0 out of 5 stars Good, Tough Lock, October 28, 2008

By 

J. Brooks (Boston, MA USA) - See all my reviews
(REAL NAME)   

This review is from: On Guard PitBull U-Lock (Sports)

Own: Mongoose Estes ($200)
In: Boston, MA

This lock packs a punch, and a lot more of one than I expected.

After shopping around for locks for my new bike, I was a bit weary of which one was the 'best'. Not one person could seem to come to a conclusion, so I bought this one. When the package arrived, I was stunned at how heavy it was. It wasn't back breaking, but at the same time, it didn't feel like a box of pasta.

SO it's great, because it's heavy duty, but not very heavy. There is also a mounting clip that comes with it that works great, so you don't have to carry it in your bag.

Be aware, this is a MINI lock, so it's not very long. This can create an inconvenience sometimes, but it is even tougher than the long ones, so it's a good sacrifice.

My bike hasn't been stolen so far, and I've gotten complements from other cyclists on the lock, so it's a five star rating EXCEPT...The bar doesn't go all the way into the base sometimes, so it can feel a bit loose (but like I said, it hasn't been stolen yet...)

Overall a GREAT lock for it's value! Would recommend it to any cyclist!

6 of 6 people found the following review helpful:

5.0 out of 5 stars Great, strong lock, July 28, 2008

By 

Susan Moss "Huntryx" (Upstate NY) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: On Guard PitBull U-Lock (Sports)

Debated between this and the NY FORGEDDABOUDIT lock which is about 2-3 times the price. A new TREK 7.5 FX was the motivation. It's sturdy, small enough not to add a huge amount of weight (isn't that why we buy good bikes, the weight?) and to hook my bike to most racks easily, defying leverage. A good buy, good guarantee, too.

5 of 5 people found the following review helpful:

4.0 out of 5 stars Lock okay, mount less so, May 26, 2008

By 

Karl S. Chwe (Denver, CO United States) - See all my reviews
(VINE VOICE)    (REAL NAME)   

This review is from: On Guard PitBull U-Lock (Sports)

The lock itself seems sturdy enough. At least one review found it resistant to most attacks. ([...]) It is long enough to capture both the front wheel and the frame, along with a fencepost, which is a good thing if you have a quick-release front wheel (which can be removed in 2 seconds without tools.)

However, the lock is too big to mount inside the frame of my 53 cm road bike. (The mount requires a little clearance above the lock to allow the lock to be slid up out of its mount.) That is not a small bike, and there are many bikes with smaller frames.

Luckily, the lock and mounting system is flexible, accommodating nearly any tube size. The piece that takes the lock can be removed by unscrewing four screws, and rotated 90 degrees. Also, the mounting piece on the lock itself can be rotated by loosening a set screw. Those two things mean the lock can be mounted several different places on the frame. The instructions give several suggestions, with a list of pros and cons of each. One problem with a few locations is that the lock can interfere with your pedal stroke.

The mount itself is not all that easy to attach to the bike. You have to place an thin, H-shaped piece of rubber (included) between the mount and the frame to keep it from sliding around. The rubber isn't attached or glued to the mount for some reason (possibly because it is a last-minute addition) so it is easy to lose. It also doesn't fit the mount exactly. I dropped it few times before I got the mount on securely.

These new mounts use a strap of nylon that you wrap around a frame tube and pull tight, then tighten further by turning a ratcheted bolt that takes up the slack. (That operation requires a metric hex wrench, which you are likely to have because lots of other things on the bike require metric hex wrenches.) You can get pretty good tension on that strap. However, depending on where you put the mount, something (like the rear reflector) can block access to the tightening bolt.

Unluckily, I chose a location that did interfere with my pedaling (it is impossible to be sure whether or not a position will interfere with pedaling without actually mounting it in that position.)

And this is the major flaw with the mount. You cannot reposition it without cutting the strap or probably damaging the mount. The ratchet, being a ratchet, turns only one way. So you can only tighten the strap, you can't loosen it. You can try to turn the ratchet the wrong way, but that usually breaks the ratchet, and this one doesn't seem all that robust. So I am waiting for tech support from OnGuard for advice. If need be, I will just cut the strap and get a new mount from REI (unlike Amazon, REI offers a lifetime guarantee on everything it sells.)

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