The master cylinders on both the front and the rear of the bike are basically the same ?C a piston that pushes brake fluid down the lines to the caliper (the slave), in turn forcing the pistons out to press the brake pads against the disc.
In the category of Braking Master Cylinders and Fluid Reservoirs Master Cylinders
Another great Master Cylinder
COMPATIBILITY
Loncin: LX650-2C
Voge: 650DSX Euro 5 LX650-2C-E5