The Bolt-upset-wp-small is the lowest priced item on this Front Caliper schematic.
Some items from this specific schematic: Caliper-assy,fr, Pad-assy-brake (nas), Cover,disc,p.white, Spring.
With all the components that make up the KDX125-A2 1991 EUROPE UK AR GR NR SA ST FRONT CALIPER assembly. The Bolt,disc Plate,8x15 is the most frequently specified with four applications.