Parts such as the Rear Brake Caliper: Piston, Cover,rr.disk, Caliper Comp.,rr., Pad.comp.rr.brake are included in the Cb1000c 1000 Custom 1983 (d) Usa Rear Brake Caliper parts fiche.
On this parts fiche the Pad,rr.(ask) is the most specified component.
Of all the components that make up this Rear Brake Caliper the Screw-washer,5x12 has the lowest price.