Topeak Plug’n Chain Tool 13S TT2618The Topeak Plug’n Chain Tool 13S is an easily accessible hidden compact chain tool kit housed in handlebar ends for your mountain bike. It features CrMo steel chain tool for single and multi-speed chains up to 13 speed, including Sram Flattop chains and Campagnolo hollow pin chains. Included chain hook holds links during assembly. The PLUG 'n CHAIN TOOL was designed to be used on handlebars with round ends only and should not be used on bars with other shaped ends. Weighs only 52g.883466038189