Kryptonite\\\'s ultimate U-lock for urban areas and other high theft danger areas. The New York M18 Lock features 18 mm diameter Kryptonium steel shackle and double deadbolt lock. This is the ultimate Kryptonite U-lock for Power sports and cycles. It has passed following tests: FFMC and Classe SRA. Highest security, Pick-Safe anti-pick and drill resistant disc-style cylinder. Hardened steel sleeve over crossbar provides double security protection. Integrated sliding dustcover protects cylinder. Centre keyway location deters leverage attacks. Every lock is supplied with 3 keys, including 1 lighted. Approved to Gold Sold Secure standard. Key Features 18mm hardened MAX-PERFORMANCE STEEL SHACKLE resists bolt cutters and leverage attacks Oversized, patented HARDENED STEEL SLEEVE over crossbar for double security DOUBLE DEADBOLT locking for extensive holding power HIGH SECURITY DISC-STYLE CYLINDER Center keyway defends against leverage attacks Protective vinyl coating SLIDING DUSTCOVER protects and extends cylinder life 3 STAINLESS STEEL KEYS - one lighted with high intensity LED BULB & REPLACEABLE BATTERY Key Safe Program Lifetime warranty About the Brand Over 40 years ago, Kryptonite began with a mission. While much has changed in bicycling, and bicycle security, Kryptonite\\\'s objective remains the same, they are here to empower you to protect what you value. Through constant innovation, expert guidance, and Kryptonite\\\'s never-ending commitment, they continue to pursue their passion and do everything they can to ensure you can go where you want, when you want by offering smart, serious security solutions. In 1989, an unusually high number of Anti-Theft Protection claims in central New York City, forced Kryptonite to stop offering protection there until 1994. The New York Lock was introduced in 1994 and became a flagship lock for the company. By 2013 Kryptonite became part of Allegion PLC through the spinoff of Allegion from Ingersoll-Rand. This separation allows Allegion to focus solely on commercial and residential security businesses. Bicycle Locks Buying Guide