The most reasonably priced component used on the Xr650r 2002 (2) General Export / Kph Ssw Rear Brake Master Cylinder is the Pin,spring,2x10.
The Rear Brake Master Cylinder assembly is constructed from several parts from which the Piston Set,m/c. is the most expensive.
Parts such as the Rear Brake Master Cylinder: Pin D,joint, Pin,spring,2x10, Nut,hex.,8mm, Screw-washer,6x14 are included in the Xr650r 2002 (2) General Export / Kph Ssw Rear Brake Master Cylinder parts fiche.