HARDDRIVE 201409 Cush Drive Chain Conversion Kit Black. Chain Conversions Kits for Touring Cush Drives. CNC Precision Machined from High-Strength Billet AluminumÂ. Sprockets made from Heat-Treated Steel for maximum durability. Kits are geared lower than stock 6-speed to gain more usable power within the RPM range. Kits come with: Hub Adapter Plate, Spacer, Bearing, 51T Rear Sprocket and 24T Transmission Sprocket. Replacement Sprocket Hub Kit includes: hub adapter plate, spacer and bearing assembly. Recommend purchasing a 530×130 link chain, and cut to fit. We Ride, We Race.