The biggest advantage of the chain lock is the flexibility it offers. With a chain lock, you can secure your bike almost anywhere. The Chain Lock Steel-O-Chain 5805K is particularly suitable for cyclists who often find themselves in low-theft risk areas. The flexibility of chain locks is ideal for cyclists who need to lock their bikes in various locations frequently. The clear advantage of the Chain Lock Steel-O-Chain 5805K, with its 5 mm square chain made of specially hardened steel, is its flexibility. It provides numerous options for securely attaching your bike to different objects. Ideal objects include sturdy bike racks or lamp posts, as long as the bike does not obstruct anyone when left there.