RK is the leading manufacturer of drive chains for motorcycles in Japan. For more than 40 years, RK has been supplying all well-known Japanese motorcycle manufacturers as original equipment. In racing, too, RK is the first choice of many teams in MotoGP, motocross or even the Paris-Dakar Rally. RK ZXW: The ZXW chain is a further development of the GXW series to meet the requirements of high-horsepower road bikes of the latest generation and is characterized by an extremely high tensile strength. Due to the special shape of the XW rings, the chain is sealed at six sealing points, thus preventing the loss of lubricant under all conditions - the service life is extended by up to 50% compared to an O-ring chain. - XW-ring chain - six sealing points, two stabilizers prevent twisting of the rings - loss of lubricant is avoided - 50% longer life than O-ring chain - extremely high tensile strength