Some items from this specific schematic: Nut, Plate,chain Adjuster, Washer, Spacer,rear Hub Bearing.
This REAR WHEEL assembly utilises twenty Washer,lock,8.(s) - the highest specified component.
The most reasonably priced component used on the Rv50 1983 (d) (e01) Rear Wheel is the Washer(12.5x20x1).
