The most reasonably priced component used on the Gs1000c 1979 (n) Usa (e03) Front Master Cylinder (gs1000c is the Screw,master Cylinder.
The Suzuki FRONT MASTER CYLINDER (GS1000C has ten products enlisted in the schematic.
This Cylinder Assembly,master is the most expensive of the items that make up this Front Master Cylinder (gs1000c assembly.