D.I.D chain is used by the factory race teams and is the #1 chain manufacturer in the world. Solid rollers, shot-peened parts. High cylindrical and roundness accuracy. Exacting tolerances provide low friction. Pre-stretched. Extended riveted bushing "anti-kink" design. Special alloy steel. Average tensile strength of 6,930 lbs.. Includes clip link. Standard 530 x 130, Natural
