This REAR WHEEL assembly utilises four Collar (2g5)(s) - the highest specified component.
Parts such as the Rear Wheel: Nut, Shaft, Rear Wheel, Lever, Cam Shaft, Ybs67-8 Washer, Spring are included in the Xs400-2 1979 Usa Rear Wheel parts fiche.
The component with the lowest price in the REAR WHEEL schematic is the Washer(526).