Editorial Product Review:

Item Description:
The BullDog Series offers serious U-lock protection for bicycle and light power sport use. A DualBolt lock mechanism drives two hardened pins into the beefy 13mm ultrahardened steel shackle at both ends creating a double lock that can withstand up to 6 tons of pull force. Other features include: improved M-Cylinder lock mechanism; 4 laser-cut keys plus one TorchKey; rubber coated ends and fully vinyl coated shackles to protect delicate finishes and against weather deterioration. Size: 3.5' x 5.5' w/ 4' x 2/5' cable. Weight: 2.58 lbs.



Accessories available:
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Accessories available:

• Master Lock Force 3 Standard Bike Lock - 4003005
• Master Lock Force 3 Long Bike Lock - 4003010
• Master Lock Force 6 Long Bike Lock
• OnGuard Bulldog LS 5009 Bicycle U-Lock
• Master Lock Force 3 Wide Bike Lock - 4003015

Product Availability: Usually ships in 24 hours

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Customer Rating: - Tough Bike Lock
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.

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Customer Rating: - The plastic mounting bracket broke on installation...
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.

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Customer Rating: - good lock short cable
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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Customer Rating: - Good lock for the price
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.