The lowest price component in this Rear Swinging Arm parts-list fiche is the Pin 20x20.
A sample from the products for the Rear Swinging Arm include: Cvr,rr Swgarm Dust Seal(od:40), Case,chain, Bearing(17x24x25), Bolt(10x35).
The sub assemblies and components that make up this Rear Swinging Arm include this Swingingarm Assy,rr, the most expensive part.