Renthal R1 Chain is a high-performance, lightweight, low-friction, non o-ring chain specifically engineered for racing at the highest levels. Often described as "the best motocross chain available", the R1 Chain has high resistance to elongation and severe abrupt stresses encountered in MX & SX racing. This is achieved by manipulating raw material composition to increase tensile strength and yield strength. Each R1 Works Chain features chamfered inner links, extended bushings, shot-peened outer plates and chromized bearing pins. This reduces weight in a durable and safe motocross chain that can be trusted to deliver maximum power output in any condition. Includes Clip Style Master Link.