At DMG Motorsports, we present the Brembo RCS 15mm Upgrade Clutch Master Cylinder — a race-derived component built to sharpen the feel and consistency of your clutch action on the road or the track. Designed by the same engineers behind Brembo's MotoGP program, this 15mm RCS unit gives riders on supermoto, adventure, and smaller-displacement platforms the same patented technology used at the highest level of motorcycle racing. Whether you're chasing better modulation for aggressive riding or simply want a more predictable, fade-free lever pull, this master cylinder is engineered to deliver it lap after lap, ride after ride.

Brembo's RCS (Ratio Click System) is the heart of this upgrade, letting riders fine-tune the lever ratio in seconds without special tools. The unique design of the RCS system offers the flexibility to change the clutch lever ratio at the turn of a screw, with settings that provide an extremely quick and effortless action or better feel and modulation. The body itself is engineered for both strength and low weight, as the patented master cylinder is constructed of forged aluminum and then CNC machined down to remove any excess weight. Riders benefit further from thoughtful ergonomic touches, since the Brembo lever features an adjustable thumb screw that can be customized to fit a range of riders' hands, and in the event of a crash the outer portion of the lever folds up and away to avoid damage.

This 15mm bore size is purpose-built for smaller-displacement and supermoto-style applications, and pairs especially well with aftermarket calipers running larger pistons. As one specialist retailer notes, the 15mm size is well suited for 690 SMC-R, 701 Supermoto, 950/990 Adventure and 125-500 Supermoto racers running aftermarket calipers with larger pistons, complementing them well and guaranteeing better modulation, feel and performance. Overall, the Brembo RCS Clutch Master Cylinders bring to the table a level of consistent clutch feel and performance that is unsurpassed in the motorcycle racing world.

Features:

• 15mm bore/piston size, ideal for supermoto and smaller-displacement platforms running larger aftermarket caliper pistons
• Patented Brembo Ratio Click System (RCS) for quick, tool-free adjustment of lever ratio
• Adjustable lever ratio settings that deliver either extremely quick, effortless action or improved feel and modulation
• Forged aluminum construction, CNC machined to remove excess weight while retaining strength
• Adjustable thumb screw lever design that can be customized to fit a range of riders' hands
• Fold-away lever design that helps protect the lever in the event of a crash
• Race-proven design directly derived from Brembo's MotoGP and racing technology
• Upgrade compatible with matching Brembo brake master cylinders for a complete system