Kit is complete with a lightweight AFAM chromoly steel drilled front sprocket, 7075-T6 hard anodized aluminum rear sprocket, premium D.I.D. 520VM gold plated X'ring sealed chain cut to length and a rivet style master link. Stock gearing is 15/44 on the "S" model and 15/45 on the standard model.

All Drive Systems 520 conversions are made to be the lightest and strongest on the market. Average weight per kit is six pounds or less.