BREMBO Radial Brake Master Cylinder 17RCS "Fold-Up" (18-20 mm ratio)Brembo Adjustable (RCS) Radial Master Cylinder MotoGP & WorldSBK approved 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). Moto GP Piston: Piston, seals and push rod are the