Kryptonite KryptoLok Series 2 Integrated Chain

The chain weighs 6.05 lbs. While it is substantial enough to provide serious security, it is best suited for riders who prefer to leave the lock at a consistent parking spot or don't mind the extra weight in a pannier or backpack during their commute.

No, the chain is encased in a durable, weather-resistant nylon sleeve. This protective cover acts as a buffer between the steel links and your bicycle frame to prevent scratches and finish damage.

This manufacturing process hardens the steel significantly, making the 9mm links much more difficult for bolt cutters or saws to penetrate. It is a standard feature in high-security locks designed to deter opportunistic theft.

Kryptonite offers a Key Safe Program. If you register your key number with them after purchase, they can provide free replacement keys if yours are lost or stolen.

At 37.5 inches, this chain offers a good balance between portability and reach. It is generally long enough to secure your frame and one wheel to standard bike racks or street poles, though it may be tight depending on the diameter of the object.

Yes, this product includes an anti-theft protection offer from Kryptonite. You must register your lock on their website after purchase to be eligible for the program, which provides coverage in the event your bike is stolen due to the opening or breaking of the lock.