Kryptonite New-U New York Standard Heavy Duty Bicycle U Lock Bike Lock BLACK/YELLOW, 10The Kryptonite New York Lock Standard U-Lock features a 16 mm hardened max performance steel shackle with a double deadbolt anti-rotation design that resists bolt cutters and twisting leverage attacks. The lock’s disc-style cylinder with center keyway is protected by a vinyl coating and is pick and drill resistant. The keyway also features a sliding dust cover to protect the cylinder from dirt and debris when not in use. It includes three stainless steel keys with an ergonomic design to reduce torque and keep them from bending or breaking. One of the keys has an LED key fob for added visibility in the dark. Rated at 9 / 10 on our security scale, the New York Lock Standard is good for quick stops in major metropolitan areas and all day & overnight on college campuses, suburbs, and rural areas. It also includes our patented FlexFrame-U Bracket providing convenient multi-location U-Lock transport. The combination of these great features and our support programs including Key Safe, Anti-Theft Protection..Kryptonite Keeper 785 Integrated Bicycle Lock Chain Bike Lock, 33.5-Inch, BlackNow available in 3 new colors: grey, red, & purple. 7mm four-sided chain links made from 3T MANGANESE STEEL. Patent-pending END LINK DESIGN secures chain to hardened deadbolt eliminating critical vulnerability. Hardened DEADBOLT DEDSIGN provides extra holding power. HIGH SECURITY DISC-STYLE CYLINDER is pick and drill resistant. Includes 2 NEW ERGONOMIC "I" KEYS. Durable WEATHER-RESISTANT nylon sleeve prevents scratches. Key Safe Program. Product dimensions: 33.5” (85cm) chain length.