Kryptonite KryptoLok Series 2 955 Integrated Bicycle Chain Lock 000839

9mm 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 additional protection. High security disc style cylinder is pick and drill resistant Patent pending integrated lock head with talon deadbolt Includes 2 new ergonomic I keys. Durable weather resistant nylon sleeve prevents scratches. Key Safe Program.