AXA Defender ring lock The AXA Defender is a strong ring lock with a steel case in a plastic housing. The lock bracket is made of hardened steel and is 8.5 millimeters thick. The ring lock has an extra wide opening of 58 millimeters, making it also suitable for bicycles with wide tires. The AXA Defender can be mounted in various ways. As standard, it is mounted with the flexible mounting set (not included) that can be applied to any frame tube shape. Specifications: Color: green, black Material interior: steel Material casing: plastic Quality mark: ART-2 Plug-in option: yes Width opening: 51 mm Dimensions lock: 160 x 140 x 40 mm (L x W x H) Weight: approx. 720 grams Mounting: on frame Contents: 1 Ring lock 1 Normal key 1 Fold-out (spare) key