Parts such as the Front Fender - Rear Fender: Clip (156-83525-00), Nut(6l2), Guard, Mud, Clamp (1j7) are included in the Xs850l 1980 (a) Usa Front Fender - Rear Fender parts fiche.
The most reasonably priced component used on the Xs850l 1980 (a) Usa Front Fender - Rear Fender is the Washer,spring.
The Front Fender - Rear Fender assembly is constructed from several parts from which the Stay, Rear is the most expensive.