Kryptonite Messenger Mini Plus U-Lock - 3.75 x 6.5" Keyed BLK Includes 3.25" wheel extender shackle

Kryptonite security levels: 1 (Low) - 10 (High). 11mm hardened Max-Performance Steel Shackle provides a lighter weight lock with the same security as the Evolution Mini 5 7 or 9. Increased shackle dimensions allow for flexibility with lock-up. Optional Wheel Extender provides secondary protection for front or rear wheel. Reinforced cuff over crossbar and cylinder for added security. High security disc-style cross bar. Bent Foot shackle provides ease of use. Center keyway defends against leverage attacks. 2 stainless steel keys with coiled wrist key chains