Kryptonite Evolution Lite Mini-6 Heavy Duty Bicycle U Lock Bike Lock, 2.75 x 6-Inch LIGHTEST WEIGHT MINIat 747 grams: 16% lighter than the Evolution Mini-5 11mm hardenedMAX-PERFORMANCE STEEL SHACKLEwith same strength as Evolution Mini-5, Mini-7 & Mini-9* HIGH SECURITY DISC-STYLE CYLINDER BENT FOOTSHACKLEdesign for ease of use Center keyway defends against leverage attacks ANTI-RATTLE BUMPERSreduce noise during transport ROTATING DUSTCOVERprotects cylinder 3STAINLESS STEEL KEYSincluding one LED replaceable key fob Product dimensions: 2.75 x 6 (7cm x 15.2cm) Lightest weight mini at 747 grams: 16% lighter than the Evolution Mini-5 11mm hardened MAX-Performance steel shackle with same strength as Evolution Mini-5, Mini-7 & Mini-9* New DuoCore patent-pending hybrid cylinder provides increased security Bent Foot shackle design for ease of use Center keyway defends against leverage attacks Anti-rattle bumpers reduce noise during transport Rotating dustcover protects cylinder 3 stainless steel keys including one LED replaceable key fob Key Safe Program