The New York U-Lock is Kryptonite's toughest model, designed for high-risk environments. It features a hardened double deadbolt for increased security against torsion and a high-security disc-style locking cylinder that's resistant to tampering and drilling. The shackle is made from max-performance hardened steel, providing resistance to power tools, and includes a double deadbolt design for added protection against high torsion attacks and cutting. Additionally, the lock comes with a FlexFrame-U Bracket for convenient transport on your bike frame.