The AXA Block XXL is a high-quality frame lock that also offers the possibility to connect a ULC plug-in chain or a UPI plug-in cable. This is to enable you to lock your bike to a fixed object. The frame lock provides optimal security with its anti-drill cylinder and hardened steel fixture. The ergonomic design of the push button and the online key service offer you maximum security. The AXA Block XXL has an extra wide opening to create more space for tires and fender. Security description: Security level 12, Approved for bicycle insurance in Sweden, The frame lock is compatible with ULC plug-in chain and UPI plug-in cable