The Strange Engineering dual inline master cylinder is ideal for sportsman classes requiring four wheel braking. Assuming the rear wheels are equipped with 4-piston calipers; the 1.032 bore master cylinder should be used if 2-piston or single piston calipers are used for the front two wheels. The 1.125 bore master cylinder will allow optimum volume and pressure for vehicles using 4-piston calipers for the front two wheels.