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.Key Features:Wrench: Mavic Splined Road & MTB, 3.22, 3.45,Weight: 106g.