Product Description

OnGuard Bulldog 13mm U-Lock with Cable Massive 13mm 12 hardened ultra steel shackle provides maximum cut resistance
Vinyl coated and weatherproof
Includes 5 laser cut keys and 1 light key
3.5 x 5.5 4 x 38 cable 10mm
Four Star security level rating makes these locks a high theft resistance for high crime

Product Details

• Amazon Sales Rank: #3195 in Sports & Outdoors
• Size: --
• Color: --
• Brand: OnGuard
• Model: 45005008
• Dimensions: 4.80" h x 8.10" w x 10.10" l, 5.00 pounds

Features

• Massive 13mm 12 hardened ultra steel shackle provides maximum cut resistance
• Vinyl coated and weatherproof
• Includes 5 laser cut keys and 1 light key
• 3.5 x 5.5 4 x 38 cable 10mm
• Four Star security level rating makes these locks a high theft resistance for high crime

Customer Reviews

Solid Lock
This lock will definitely keep your bike safe. Don't be fooled by the name "Mini DT" because this thing is solid. To give you an idea, I weighed components:

U-lock - 2 lbs 5 oz.
Cable - 11 oz.
Combined - 3 lbs.

Dimensions of the U-lock:
Width - 6 in.
Height - 7.8 in.
Diameter of thickest part - 1.75 in.

Length of cable - 46 in.

The frame mount is pretty good (easy to install, you'll need a hex wrench though) and it comes with 5 keys (seems like overkill, but whatever.)

For the price and the free shipping, its a no brainer.

Get it and be done with it.

Better than Kr*ptonite!
I would suggest before buying an OnGuard lock, visit the manufacturers website for security ratings. This specific u-lock is rated 4+ out of 5+. It has what OnGuard calls 4x power quattro locking system which provides greater pull apart resistance than their 2x system. The cable is there to allow you to secure additional items such as your seat/wheels. Before doing some research I was simply going to buy a large u-lock, but after reading, it seems the mini u-locks are more secure in the sense that they leave less room for a pry bar or jack attack. They also have the additional benefit of being lighter!

This Bike Lock Triggered My Latent Superpowers
My whole life, people have made unflattering assumptions about my strength. This little Asian girl, they think to themselves, is surely incapable of throwing that ball weighing less than 1% of her body mass. News flash: I'm skinny, not crippled.

Well, thanks to this bike lock, those days are over. After my brand new OnGuard PitBull MINI DT arrived in the mail, I was quite eager to test it out. I grabbed one of the five conveniently-included keys and stuck it into the keyhole. I turned it, pulled it out, and was greeted by a piece of metal much shorter than the one I had glimpsed just 5 seconds before.

The process of unwrapping the lock from its unusually constrictive packaging (I guess that a company that makes bike locks feels they have to protect their reputation by rendering their products immobile even BEFORE usage) had triggered an unprecedented and untapped arm strength that had been lying dormant my entire life. By applying what I thought was a normal amount of force on this key for no more than three seconds, the metal twisted until it broke, leaving the bottom part of the key wedged securely in the keyhole. Sure, my never-used bike lock has been demoted to doorstop, but $38 is a small price to pay for the realization that I can now destroy pieces of metal as easily as I can waste time on the Internet.