DID - Chain – 525ZVM-X2The D. I. D ZVM X2 Series utilizes our patented X Ring seal and has greater strength than the VX Series and is designed for heavyweight motorcycles with tremendous torque and horsepower. The twisting action of the X Ring increases its sealing performance and its four contact points minimizes power loss. The ZVM X Series Direct Energy Transfer, born from our experience in MotoGP, means greater stretch resistance under load. The ZVMX2 chain is a great