BikeMaster is a brand that focuses on quality, performance, and value priced products for motorcycles and ATV's. Ideal O.E.M. replacement Q4 Sealed Chain (Q4 seal-ring chain) offers 1.5 to 2 times longer wear resistance than regular O-ring chains. Each refined component, designed with computer analysis, provides higher tensile strength. Specially controlled heat treatment means tougher material and more durability. Q4 seal ring and reinforced pin and roller provide superior wear resistance, higher impact resistance and fatigue strength. Q4 seal ring offers less friction, which leads to less power loss, almost half that of standard O-ring chain. Round rivet head offers superior rigidity over 2 or 4-point (quad-staked) riveting. Average tensile strength of 9,700 pounds. Maximum rated displacement (street / off-road): 1100 / 800cc.