MS Series

Flange mounted master cylinder

Product Details


  • Suitable for brake and clutch applications
  • Standard 57.2mm (2.25″) mounting centres, interchangeable with other manufacturers’ master cylinders
  • Breather port clearance (cut-off travel) calibrated during assembly to provide controlled lost travel
  • Rubber dust excluder boot
  • Non-standard push rods available on request
  • Versions with non-captive push rods available on request


  • Push rod length from flange is 115mm with 50mm thread length. Shorten push rod as required.
  • Fluid inlet port 0.437-20 UNF (-4). Tightening torque 18-22Nm with a copper washer
  • Fluid outlet port 0.375-24 UNF (-3). Tightening torque 17-20Nm with a copper washer
  • To avoid trapping air, install it with the ports uppermost. The fluid outlet port must not be below the horizontal axis.
  • Push rod angularity must not exceed 5° throughout the full travel
  • Weight 0.31kg