RK BL520 ZXW-ringchain Black Scale

RK ZXW Series were developed to meet the spec of the latest models of extreme superbike 1000cc and above.
RK ZXW series features RK’s only technology of XW-Ring, which has 2 lubrication pools and 3 contact lips, a triple barrier structure to further seal the lubrication and prevent debris to enter the chain.
RK ZXW Series are designed to be the strongest, long-lasting chain available on today’s market, with highest tensile strength of RK series and high rigidity for instant respond on acceleration.