Some items from this specific schematic: Case,chain, Bearing(17x24x20), Bolt(6x20), Swingingarm Assy,rr.
The lowest price component in this Rear Swinging Arm parts-list fiche is the Bolt(6x20).
The sub assemblies and components that make up this Rear Swinging Arm include this Swingingarm Assy,rr, the most expensive part.