An award winning 21 functions multi-tool with updated design to store T15, T25, 8mm hex tool bits and side mounted tire levers securely. Includes self-tightening tool (T25 Torx® bit) and Presta Core Tool to tighten or remove two-piece Presta valve cores. The Hexus® X is an excellent choice for both road and mountain bike riders. * The chain tool is compatible with single and multi-speed chains up to 12 speed, NOT including Campagnolo® 11 speed hollow pin chains.