STEELOCHAIN 5805K 75CM RD LOCKThe Steel O Chain 5805K 75cm is a practical and flexible chain lock designed for everyday cycling in low to medium risk environments. Built with a 5mm square chain made from specially hardened steel, it provides dependable security while remaining easy to handle and store. The chain is wrapped in a durable textile sleeve to help protect your bikes paintwork during use, making it ideal for commuters, casual riders, and short stop parking around town.