Kryptonite Keeper U-Lock

Yes, it includes a flexible cable that allows you to secure your front wheel or other accessories alongside the main U-lock.

The lock weighs 2.40 lbs, which is a standard weight for a hardened steel U-lock of this size. It includes a side-mount snap-in bracket that attaches to your bike frame, making it easy to transport without needing to carry it in a bag.

Yes, it uses a disc-style cylinder with a center keyway designed specifically to resist picking and drilling attempts.

No, the shackle is covered in a durable, weather-resistant vinyl sleeve that acts as a protective barrier between the steel and your bike frame.

Kryptonite offers a key replacement program for this lock. Be sure to register your key number with the manufacturer immediately after purchase so you can easily request replacements if needed.

The Keeper 12 is a solid, reliable choice for moderate security needs, featuring a 12mm hardened steel shackle. However, if you frequently lock your bike in high-theft urban environments for extended periods, you might consider upgrading to one of Kryptonite's higher-security models.