Kryptonite New York M18 U-LockThe Kryptonite M18 WL New York Lock is built real tough with an 18mm hardened max performance steel shackle that resists bolt cutters and leverage attacks. It features an oversized hardened steel sleeve over the crossbar for double security, with a double deadbolt locking for increased holding power, a high security disc style cyliner that's more resistant to drills and picks and a center keyway defending against leverage attacks. To finish the New