For extra security, it is important to lock your bike to a fixed object. This way, a thief cannot pick up your bike and take it to a quiet place to open the lock. The diameter of the links is 5.5 mm and the hardened steel plug-in pin is 10 mm thick. It has a length of 130 cm and has a black polyester cover to protect the bike from scratches. ULC 130 The ideal solution for this is the ULC 130 Plug-in chain. With this chain you operate the ring lock and chain with only 1 key. The ULC is a universal chain and fits besides the AXA Imenso and Block XXL ring locks also in other brand ring locks. Specifications: Color: black Length: 130 cm Material chain: Material cover: polyester Diameter links: 5.5 mm Diameter plug-in pin: 10 mm Weight: 760 grams