The component with the lowest price in the REAR FENDER schematic is the Screw,pan,6x16.
The Rear Fender assembly is constructed from several parts from which the Fender C,rr. is the most expensive.
Parts such as the Rear Fender: Screw,cross 6x16, Bolt,flange,6x12, Bar,r.rr.grip, Bracket,number Pl are included in the Cb450sc Nighthawk 1985 (f) Usa California Rear Fender parts fiche.