Lezyne chain drive tool 9 10 speed lezyne chain drive tool shop quality chain breaker designed for use with 9 10 speed chains.forged steel body is cnc machined for tool accuracy and contoured for improved ergonomics. Replaceable breaker pin is made of hardened steel spare pin included. 2x mavic splined and 2x square spoke wrenches are integrated into the body making this an extremely compact and versatile tool.features weight 93g wrench mavic splined road mtb, 3.22, 3.45 cnc machined 11 speed lezyne chain drive tool shop quality chain breaker designed for use with 11 speed campagnolo chains. Forged steel body is cnc machined for tool accuracy and contoured for improved ergonomics. Replaceable breaker pin and backing bolt are made of hardened steel and designed for flaring 11 speed chain pins spare pin included. Guide pin removal tool and spoke wrenches 2x mavic splined, 2x square type are integrated into the body making this an extremely compact and versatile tool.features weight 106g wrench mavic splined road mtb, 3.22, 3.45 cnc machined buy lezyne tools from chain reaction cycles, the world's largest online bike store.