The Bolt is the lowest priced item on this Rear Caliper (model X/y/k1/k2 Gsx1300rzk3) schematic.
On this parts fiche the Bolt,housing is the most specified component.
The Rear Caliper (model X/y/k1/k2 Gsx1300rzk3) assembly is constructed from several parts from which the Caliper Assembly,rear is the most expensive.