This Sub Assy,fr M/c is the most expensive of the items that make up this Front Brake Master Cylinder assembly.
Some items from this specific schematic: Diaphragm (nisshi, Nut,cap,6mm, Cover,dust (nissh, Hose,l.fr.brake.
The most reasonably priced component used on the Vfr750r Rc30 1988 (j) Austria Front Brake Master Cylinder is the Screw Wash.,4x12.