CHAIN DID525ZVMX2 GG 116RHTwisting action of the X Ring increases its sealing performance and its four contact points minimizes power loss ZVM X Series utilizes D. I. D's patented X Ring seal and has greater strength than the VX Series and is designed for heavyweight motorcycles with tremendous torque and horsepower ZVM X Series Direct Energy Transfer, born from our experience in MotoGP, means greater stretch resistance under load ZVM X chain is a great chain for high powered