Details
This is a UNIVERSAL PRODUCT and you must to evaluate if it is adaptable on yuor motorbike. You can send a question to us if you are some doubt.
Technical Data:
Attributes:
Ø Piston : 15 mm
Ratio : 18-20 mm
Notes
Use ONLY DOT4 brake fluid, DO NOT USE mineral oil
Tightening torque for bleeding screw: 12÷16 Nm
The RCS device consists into an eccentric drive that allows to select the pump lever ratio between 18 and 20 mm, to obtain the ideal feeling among the rider, his driving style, the bike and the course: simply selecting the lever ratio, it is now possible to have a more reactive system (20 mm) or a more adjustable one(18 mm).
RCS brake master cylinder are available in several versions: 19, 17, 15 and 14. These numbers indicate the piston diameter and define the application of the master cylinders.

Technical features of RCS system:
Adjustable ratio: RCS system
This new patented device allows to modify the pump lever ratio on two values, 18 or 20 mm, by simply rotation of the eccentric drive placed on the front of the lever drive. By the RCS system – Ratio Click System – it is very easy to pass from one configuration to the other one, modifying the lever ratio to adjust it to the different characteristics of the braking system, of the usage and driving, such as, for ex., the wet or dry conditions, asphalt with more or less grip, circuit with strong braking.
This adjustment is the element missing till now to get the ideal feeling among the rider, the driving style, the bike and the circuit.
NB. The red spot on the eccentric drive identifies position 18mm of the lever ratio, while black indicates position 20mm.
Moto GP Piston
Piston, seals and push rod are the same as those used in the official MotoGP and SBK master
cylinders: very narrow tolerances for the highest precision while braking.
Body
Produced in forged aluminium alloy, is partially CNC machined and then finished by hard anodizing process.
Lever
It is made by two main components: the lever drive and the “half” folding lever, both produced in forged aluminium with black finishing.