X-Ring - Triple S Chains. X-RING CHAIN In these chains an X-shaped rubber seal is fitted between the inner and outer links, the extra two points against the links retain internal grease and stop dirt entering. With characteristic lower friction levels and increased running performance over O-ring chains, X-ring chains are recommended for higher powered and touring bikes.
X-RING CHAIN. 520 Extra Heavy DUTY. 520XHX-104L