The component with the lowest price in the REAR BRAKE CALIPER schematic is the Bolt,flange Sh 6x.
Parts such as the Rear Brake Caliper: Bolt,flange,sh 6x, Bracket Comp,rr, Pin,bolt, Sensor Wheel Spd, are included in the Cb1300 2009 (9) Singapore / Mme Two Rear Brake Caliper parts fiche.
The Rear Brake Caliper is made up of components including this Caliper Sub Assy, which is the most expensive.