Kit is complete with a AFAM lightweight chromoly steel drilled front sprocket, New lightweight AFAM K2 Black hard anodized 7075-T6 aluminum rear sprocket, premium D.I.D. 520ERV3 gold plated X'ring sealed chain cut to length and a rivet style master link. Stock gearing is 17/42.

New AFAM K2 rear sprockets are the lightest sprockets on the market today weighing in at less than 9 ounces. All Drive Systems 520 conversions are made to be the lightest and strongest on the market. Average weight per kit is well under six pounds.