• 11mm hardened New MAX-Performance steel shackle material allows reduction of shackle diameter while maintaining the performance standards of the Evolution Mini-5, Mini-7 & Mini-9 • Reinforced cuff over hardened crossbar and cylinder protects high security disc-style cylinder • DuoCore-new hybrid cylinder technology provides increased security • High security Bent Foot design for ease of use • Kryptonite's lightest weight U-lock option at 747 grams (1.65 lbs)-16% lighter than the Evolution Mini-5 • 3 Stainless steel keys-including new key design and one LED replaceable key fob