Abus Granit Plus 640 U-Lock Description: The Abus Granit Plus 640 U-Lock affords commuters and cycling life-stylers a lightweight high-security option for securing their bike without the weight penalty associated with key-entry U-locks. Features: 12mm hardened steel round shackle Double-bolted lock body technology Flat bolt ball locking mechanism for enhanced locking comfort Constructed in part with alloy and lightweight materials where possible for weight-optimization ABUS Plus cylinder with automatic cover for high tamper and picking protection 2 keys included Specifications: Color: Black Lock Type: Key Internal Lock Size Imperial: 5.9 x 3.3" Internal Lock Size Metric: 150 x 83mm Weight: 2.27 lbs.