DID 525 VM Series Gold X-ring Chain
VM series chains have superior strength to combat breakage due to tremendous horsepower and quick acceleration. A special minimum friction 'X' type O-ring is used to imcrease performance and provide better sealing to keep out dirt and lubrication in.
features: Tensile Strength 8000 lbs. Max cc 750
specific: wear resistance 3220, standard = 100.