Kryptonite Kryptolok Series 2 Integrated Chain

At 21.5 inches (approximately 54 cm), this chain is quite short. It is best suited for locking your frame to standard bike racks or thinner posts, but you will likely struggle to secure both wheels and the frame to larger street furniture.

Kryptonite’s rating system places this lock in the moderate security category. It is a solid choice for quick stops in lower-crime areas or as a secondary lock, but for high-theft urban environments or overnight storage, you should consider a higher-rated lock from their Evolution or New York lines.

No, the chain is encased in a durable, weather-resistant nylon sleeve. This protective cover prevents the metal links from making direct contact with your bike's paint or finish.

The integrated design means the locking mechanism is permanently attached to the chain. This eliminates the need for a separate padlock, making the system easier to carry and reducing the number of potential weak points that a thief could exploit.

Kryptonite offers an optional Anti-Theft Protection Program that provides monetary reimbursement if your bike is stolen due to the opening or breaking of the lock. You must register your lock on their website shortly after purchase to be eligible for this coverage.