The component with the lowest price in the REAR CALIPER (GSX1300BKAK8) schematic is the Cap,bleeder Plug.
The Rear Caliper (gsx1300bkak8) is made up of components including this Caliper Assy,rr which is the most expensive.
A sample from the products for the Rear Caliper (gsx1300bkak8) include: Boot,axle, Boot,sleeve, Pin,bolt, Caliper Assy,rr.