The component with the lowest price in the CHAIN CASE schematic is the Washer(6.5x20x1.2).
On this parts fiche the Washer is the most specified component.
A sample from the products for the Chain Case include: Absorber Assy,rr Shock, Washer (10.5x24x2.3), Spacer(6.5x9x7), Screw.
