Size a master cylinder bore diameter based on caliper piston area, desired pedal ratio, and required line pressure.
Input Parameters
Results
--
Recommended MC Bore
in
--
MC Piston Area
in²
--
Clamping Force
lbs
--
Brake Torque
ft-lbs
Note: A smaller master cylinder bore increases line pressure but reduces fluid displacement. Ensure adequate fluid volume for full caliper piston travel.
Reference
MC Area = Input Force / Target Pressure
MC Bore = 2 x sqrt(Area / pi)
Standard bores: 5/8, 3/4, 13/16, 7/8, 15/16, 1"
Clamping Force = Line Pressure x Caliper Area
Brake Torque = Clamp x mu x 2 x Rotor Radius