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Accossato 19x18 Corsa Radial Brake Master Cylinder w/ Folding Lever RST and Integrated Brake Switch

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Accossato 19x18 Corsa Radial Brake Master Cylinder w/ Folding Lever RST and Integrated Brake Switch


We went Wide Open Throttle on this item and SOLD OUT. Email here to discuss pre-ordering so we can ship ASAP.


Item Details

The Accossato 19x18 Ready to Brake radial brake master cylinder uses an upgraded hinged clamp design to secure itself easily on the motorcycle handlebar. The forged aluminum cylinder is stronger and lighter than a stock cast unit for maximum reliability. The 19mm size piston yields a substantial increase in power and feel for motorcycles with a double disc brake rotor setup. Includes an integrated brake light switch (removeable). Accossato has been producing Italian made sportbike components for original and aftermarket use since 1969.


This Ready to Brake Corsa 19mm master is characterized as having a very firm lever that is powerful and resitant to brake fade. Built for heavy use on the track or street, the racers style folding lever is solid but will flip up in a crash to prevent snapping off. An air inlet hole is machined in the end of the lever to allow for air passage at high speed. Additionally, the RTB Corsa brake master cylinder features Accossato's new tool free / quick-change lever system that can be swapped in seconds so you'll never miss a race.


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.



  • Folding Lever: 19mm x 18mm
  • Material: Pressure Forged Aluminum
  • Piston: 19mm
  • Disc Application: Double
  • Integrated Brake Light Switch (removeable)
  • Surface Protection: Anodized
  • Tool Free / Quick-Change Replacement Lever System
  • Standard Folding Lever w/ RST Part#: ACC-LV030N-18-L-RST
  • Can not be mounted with a remote adjuster*
  • Exclusive Three (3) Year Limited USA Warranty 



  • We suggest the Accossato 30ml Brake Reservoir Mounting Kit (Part# ACC-KITVG) as it includes a reservoir, bracket, hardware and tubing.
  • The 19x18 brake master cylinder includes a double hole banjo bolt with 3 copper washers. This will work if you have 2 brake lines coming off the master cylinder. If you only have 1 line off the master you will need a M10x1.0 Single Hole Banjo Bolt Part#: ACC-MS2365.
  • If you intend to use your stock reservoir you will require a length of 6mm Tygon 2375 Tubing and 2 3/8" Spring Clamps.
  • 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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