A high security u lock that's perfect for bicycles ebikes and powersports features 13mm hardened max performance steel shackle resists bolt cutters and leverage attacks patent pending hardened double deadbolt design gives additional protection against twist attacks new sliding dustcover new double deadbolt design higher security disc style cylinder is pick and drill resistant. Includes flexframe u bracket providing convenient multi location u lock transport 3 stainless steel keys mdash including new key design and one led replaceable key fob protective vinyl coating key safe program awarded 'police preferred specification' status by secured by design the official security initiative owned by the uk police service product dimensions 8.3cm x 24.1cm product weight 1.43 kgs