RK 520 UWR UW-Ring Chain 520 Pitch 120 Links Gold
RK 520UWR Road Racing Chain Professional race and track-use chain. In use by Moto2 teams today, designed with MotoGP tech previously unavailable to consumers. Features a UW Ring that creates the ultimate seal by reducing the most friction compared to other sealed rings on the market. Features: 8,360 lbs tensile strength For machines up to 1300cc Up to 1200 mi. for track use only