Brembo 15 RCS Radial Master Cylinder 110A26320
This legendary product has now been updated with a number of significant engineering features all derived from MotoGP.
Now marketed as a new RCS ( ratio click system ) racing radial brake master cylinder.
The RCS system consists of an adjuster that sets the brake lever pivot distance to either 18 or 20 mm, for the perfect feedback between rider and machine: setting the pivot distance to 20 mm makes the braking system more reactive and immediate, while a pivot distance of 18 mm makes it more precisely controllable.
Changing between the two settings is extremely quick: simply adjust the master cylinder pivot distance by turning the adjuster on the front of the guide lever with cam mechanism by 180° using a screwdriver (red indicates 18 mm, black indicates 20 mm). This changes braking power distribution without modifying the pure power of the system itself.
The piston, gaskets and push rod of RCS master cylinders are exactly the same components as those in the master cylinders used by practically all MotoGP and SBK riders, and are manufactured to extremely fine tolerances and ensure very low friction.
The lever consists of two main components: the racing lever guide and the folding, forged lever itself.
The 15RCS has all the features of the 19RCS. The user can change the lever pivot distance from 18mm to 20mm simply by turning the adjuster inside the cylinder. The 15RCS can be used on a twin discs braking system carrying floating calipers as well as on single disc bikes.
The 15RCS with a 15 X 20 setup works like a 16 X 18 Master Cylinder , while 15 X 18 equals a 16 X 16.
This brake M/C can be matched with a 16RCS Clutch Master Cylinder, giving a set-up that will deliver MotoGP performance.
Email if interested in a 16RCS Clutch Master Cylinder.
May require modification or replacement of stock brake fluid reservoir***
Fits all major supersport bikes with standard 7/8" bars.
The 15RCS is ideal for smaller bikes. It provides better feel and better control than the 19RCS for these sportbikes, which makes it the ideal Master Cylinder for 95% of all riders!
Items required to complete installation:
We suggest using the Brembo Brake Reservoir Mounting Kit (Brembo Part# 110.A263.85 available via special order) as it includes a reservoir, bracket, hardware and tubing.
The RCS includes a double banjo bolt with 4 copper washers. This will work if you have a 2 brake lines coming off the master cylinder. If you only have 1 line off the master you will need a M10x1.0 Single Banjo Bolt Brembo Part# 06.2228.76 or equivelant.
If you intend to use your stock reservoir you will require a length of 6mm Tygon 2375 Tubing and 2 3/8" Spring Clamps.
Brake fluid will be needed. We suggest replacing all of the fluid in the system when you install the master.