Topeak chain tool ninja c f handlebars 11 spdan innovative design that keeps your saddle bag or jersey pockets available for others items this top chain tool stores inside your handlebar for easy access when required 11 speed compatible this chain tool includes a chain pin compartment chain hook and 4mm allen wrench for easy operation featuresmaterial body lightweight aluminiummaterial chain tool and hook hardened steelsuitable for multi speed chain up to 11 speed hollow pin chainal