eight components are shown in this Rg125c 1986 (g) (e02 E04 E15 E17 E18 E21 E24 E30) Front Master Cylinder exploded diagram.
This FRONT MASTER CYLINDER assembly utilises two Screw(s) - the highest specified component.
The component with the lowest price in the FRONT MASTER CYLINDER schematic is the Screw.
