Kryptolok 990 combo chain lock

Updated 2026-09-05

Combining the flexibility of a chain with the convenience of a keyless system, this 3ft lock is built for modern commuters. The 9.5mm four-sided chain links are made from hardened manganese steel, offering significant resistance to bolt cutters. The length is ideal for securing the frame and front wheel to a fixed object.

The locking mechanism features a 5-digit resettable combination, providing 100,000 possible codes for enhanced security. The dials are large and easy to turn, even when wearing gloves. This system is perfect for riders who want to avoid carrying extra keys or for families sharing a single lock.

A protective nylon sleeve covers the entire length of the chain, shielding your bike from scratches and the chain from the elements. The end-link design secures the chain directly to the hardened deadbolt, eliminating a common weak point found in lesser locks. It is a robust and user-friendly security solution.

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