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.