AXA ring lock with chain insert Ring locks are ideal for use as they allow the bike lock to be attached to the frame. In any case, we never forget to take a lock with us. Moreover, a ring lock is easy to use, because the key only needs to be turned so that the bracket is in the other end and the bike is locked. Ring locks are a primary measure in the field of theft prevention Specifications Ring lock: Plug-in possibility: yes Opening width: 58 mm Weight: 400 grams Color: black Material inside: steel Housing material: plastic Mounting: on frame Mounting material not included Specifications Plug-in chain: Type: Newton PI 150 Weight: 580 grams Length: 150 cm Diameter: 10 mm Color: black Material inside: steel Housing material: nylon Content: 1 Ring lock 2 Keys 1 Plug-in chain