Some items from this specific schematic: Bearing(22x35x2), Seal,rr Swgarm Pivot Outer, Swingingarm Assy,rr, Guide,chain.
The lowest price component in this Rear Swinging Arm (model K4) parts-list fiche is the Washer, Fixed Drive Face.
The Rear Swinging Arm (model K4) assembly is constructed from several parts from which the Swingingarm Assy,rr is the most expensive.