Kryptonite

Bike lock. 7mm four-sided chain links made from 3t manganese steel. Patent-pending end link design secures chain to hardened deadbolt eliminating critical vulnerability. Hardened deadbolt design provides extra holding power. High security disc-style cylinder is pick and drill resistant. Includes 2 new ergonomic “I” keys. Durable weather-resistant nylon sleeve prevents scratches. Key Safe Program.