Brembo 19mm RCS Radial Brake Master Cylinder (Ratio Click System) - SpeedWerks Sport Bike Services

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Brembo 19mm RCS Radial Brake Master Cylinder (Ratio Click System)

Brembo 19mm RCS Radial Brake Master Cylinder (Ratio Click System)

Brembo is still a step forward compared to the competition, with its new adjustable derivation radial brake master cylinder, developed through their experience of racing at the highest level. The major innovation is the new patented device RCS (Ratio Click System) that allows for easy adjustment of the lever ratio with the simple rotation of an eccentric adjuster, placed on the front of the lever.

RCS system function: switchable between 18mm and 20mm ratios, with the RCS-Ratio Click System you can change from one configuration to another, allowing for different riding characteristics. Red spot on the eccentric adjuster means 18mm position while black spot identifies 20mm position. This solution makes it possible to adapt to different braking conditions, dry or wet, more or less grip, for use on the track or on the street. It is virtually is like having two different master cylinders in one.

The master cylinder body is forged aluminium then subsequently CNC worked by lightening mill before finally the surface is hard anodised. The new radial brake cylinder reflects the geometry, dimensions and features of that used in MotoGP.

Moto GP floating piston: 19mm diameter bore with high-level components including piston, seals and push rod which are inherited directly from the Superbike and MotoGP championship equipment, meaning reduced manufacturing tolerances and excellent smoothness.

The brake lever itself is made up of two main components allowing for a fold up design, greatly reducing the risk of the lever snapping in the event of a crash (this is another patented system that only allows the lever to fold on impact, eliminating the possibility of the lever accidentally folding during use, a great safety feature).

Micro-switch: another fantastic feature is a special housing to accept a micro brake light switch making this radial master cylinder suitable for road use, without the need for banjo bolt pressure switches.

Lever contrast springs: high load springs to guarantee the constant contact between the eccentric adjuster and the push rod, resulting in safety and longer life of various components.

Additional Information

  • Includes micro brake light switch.
  • 19mm bore size.
  • Lever span adjustable.
  • Remote reservoir design (if you do not have a brembo reservoir you will need to fit one as well as reservoir pipe and pipe clips).
  • Integral bleed nipple for rapid bleeding after assembly/service
  • Handlebar size 22mm.
  • Please be aware that if the master cylinder you are replacing is not Brembo then you will need to replace the banjo bolt as these use a M10*1.00 short thread


This Italian product is adorned with a graphic that shows beautifully the Italian tricolour at the same time providing immediate recognisability of the unit. All this ensured with Brembo quality.
If you are adding a Double Banjo Bolt to your order, please indicate in the comments section at checkout what brand of brake lines you are using to ensure we get you the correct size.

Price: $365.00
Quantity:
Brembo 19mm RCS Radial Brake Master Cylinder (Ratio Click System)
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