Ideal for street bikes and nakeds - race bike braking feel and performance beautifully packaged with no fitment hassles or unnecessary hoses
The PRS system allows you to alter the lever ratio of the master cylinder to your preference. It's important to select the correct bore and lever ratio, for your application. a larger lever ratio gives a firmer feel with less travel, at the expense of braking force, and vice versa
For road bikes with twin radial calipers, the following general rule can be followed:
each caliper has 4 pistons 32mm or above - set to 19x19
each caliper has 2 pistons 32mm or above and 2 piston 30 or below - set to 19x18
each caliper has 4 pistons 30mm or below (R1/R6/CBR1000RR/Brembo M50) - set to 19x17
For single caliper system - select the 16mm bore
If you are unsure and need advice, please use our contact page
