Premium Kit includes:

• Brembo 19RCS Radial Master Cylinder, including 1 Micro-switch and 1 x double banjo bolt (M10x1mm for double banjo lines).
• Bracket & Reservoir Mounting Kit: 45cc Reservoir, Reservoir Bracket, Brake Fluid Hose with clamps, fixing hardware (as shown in the picture).
• 1 x single banjo bolt M10x1mm (Fren Tubo part number B19001-ZNI for single banjo line)

For twin disc systems, Brembo common radial master cylinders are 19 x 18 and 19 x 20, and for Nissin is 19x21.
The choice between these models is due to the different feeling that each of them gives to the rider: the 19 x 18 is the extremest version, the shorter wheelbase is preferred by riders who like more power and excellent progressiveness, with a working stroke slightly shorter than the 19x20, the 19 x 20 is the "ready" version, the longer the wheelbase is, the shorter lever runs, as well less power is transferred to the piston.

Brembo 19RCS Adjustable Ratio combines in one product two aims.