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Accossato 19x20 Radial Clutch Master Cylinder w/ Integrated Fluid Reservoir + Lever RST

  • Accossato 19x20 Radial Clutch Master Cylinder w/ Integrated Fluid Reservoir + Lever RST
  • Image 2

Accossato 19x20 Radial Clutch Master Cylinder w/ Integrated Fluid Reservoir + Lever RST


Item Details

Loved by racers worldwide, the Accossato 19x20 radial clutch master cylinder with integrated fluid reservoir for sportbikes feature a fixed, standard length RST lever with anti-drag inlet hole. The forged aluminum cylinder is stronger and lighter than stock cast units for maximum reliability. Accossato has been producing Italian made sportbike components for original and aftermarket use since 1969.


This hydraulic clutch master uses a 20mm diameter piston and a upgraded racers folding, standard length RST lever which features an anti-drag inlet hole machined into the lever end for the passage of air at high speed.


Accossato produces race quality master cylinders and braking components using a 100% quality-control process mandating all core components to be inspected under a microscope before assembly, pressure calibrated, and vacuum tested upon final assembly.



  • Fixed Lever: 19mm x 20mm
  • Material: Pressure Forged Aluminum
  • Piston: 19mm
  • Surface Protection: Anodized
  • Exclusive Three (3) Year Limited USA Warranty



  • The clutch master cylinder includes a single hole banjo bolt with 2 copper washers.
  • If you wish to retain the clutch micro-switch functionality you will require a Single Hole Inline Pressure Switch, Banjo Bolt Part#: ACC-ID001.
  • Dot 4 Brake fluid will be needed. We suggest replacing all of the fluid in the system when you install the master. Do NOT use Dot 5.1.

 Accossato Brake Master Cylinders. For more info visit

Accossato Racing products are known worldwide for their leading design and strict adherence to the highest quality standards. Accossato products are the result of their in-house design and production process that draws from its experience building racing motorcycles since 1969. Headquartered in Turin, Italy, Accossato produces world class motorcycle brake components which include brake master cylinders, cnc machined calipers, rotors, brake lines, and pads. Technical support is provided by the Accossato North American Distributor which can solve any problems with care.

 Accossato Brake Master Cylinders. For more info visit

MOTO-D is the exclusive North American Distributor for Accossato Racing Italy. For more info visit

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