ybn s12 12 speed chain mtb road bike chain for shimano sram campagnolo with magic buckle ybn </p> <p><b>ybn chains work perfectly with almost all common circuit systems, regardless of whether they are used on mountain bikes or racing bikes.</p> <p><b> almost all ybn chains come with a matching chain lock. for the assembly / cutting of the chain only a chain driver is needed. first choice ybn