The Rear Wheel assembly is constructed from several parts from which the Tire Assy (kt885) is the most expensive.
Some items from this specific schematic: Tire Assy (kt885), Oil Seal20x28.2x5, Tire Assy (kt885), Rim Comp,wheel.
The component with the lowest price in the REAR WHEEL schematic is the Pin,cotter 4.0mm.