A sample from the products for the Rear Swinging Arm include: Pin, Nut, Swingingarm Assy,rr, Shaft,rr Swingingarm Pivot.
The most reasonably priced component used on the Gn250 1988 (j) Usa (e03) Rear Swinging Arm is the Pin.
The Rear Swinging Arm is made up of components including this Swingingarm Assy,rr which is the most expensive.