Kryptonite 994589 New York Lock M 18WL U Lock, 18mm Hardened Max Performance Steel Shackle, High Security Bicycle U Lock with Double Deadbolt, Keyed Bike Lock, Black Yellow, 3 Keys Included Drill Combo Kit R1200GS (04 13) engine breathing clean demolition R1200GS (04 13) engine breathing clean air with the O2 Rush 6604 High Performance Foam Air Filter It's bi compound with wide side soft stripe offers full grip starting from mid lean angle Its substantial construction provides a powerful physical deterrent while maintaining the compact U lock design needed for everyday bicycle security Heavy Duty 18MM Shackle — The 18mm hardened steel shackle is engineered to resist bolt cutters and leverage attacks