Some items from this specific schematic: Nut, Buffer,chain Touch Defense, Washer(25.2x42x3.2), Bolt(8x50).
This REAR SWINGING ARM (MODEL K5) assembly utilises two Bearing(30x40x30)(s) - the highest specified component.
The lowest price component in this Rear Swinging Arm (model K5) parts-list fiche is the Bolt(6x20).