The lowest price component in this Rear Hub parts-list fiche is the Washer-plain-small,8m.
Some items from this specific schematic: Joint-chain,drive, Sprocket-hub,49t,al, Sprocket-hub,47t,al, Sprocket-hub,47t.
With a quantity of six pieces, the Washer-plain-small,8m is the most used part in the REAR HUB diagram.