At DMG Motorsports, we present the Brembo Upgrade Clutch Master Cylinder 19RCS 19mm — a race-bred hydraulic clutch upgrade built for riders who demand precise, consistent lever feel every time they pull in the clutch. Engineered by Brembo, the undisputed leader in motorsport braking and clutch technology, this radial master cylinder brings MotoGP and World Superbike-level componentry straight to your bike, whether it lives on the street or the track.

The 19mm piston bore is designed for larger-capacity, high-performance hydraulic clutch systems, delivering the strength and control needed for aggressive riding and hard use. At the heart of the unit is Brembo's patented RCS (Ratio Click System), which lets you change the lever ratio in seconds with nothing more than a screwdriver — dial in a quicker, more reactive pull or a softer, more modulated feel to match your riding style, track conditions, or hand size. Every internal component, including the piston seals and pushrod, is built to the same exacting tolerances used in MotoGP and World Superbike competition, so you get race-team precision in a bolt-on upgrade.

Features:

• 19mm diameter piston, ideal for larger-capacity, high-performance hydraulic clutch setups
• Patented Brembo RCS (Ratio Click System) allows instant lever ratio adjustment (18mm/20mm) using a simple screwdriver
• Forged aluminum alloy body, CNC machined for a lightweight yet strong construction
• Hard anodized finish for durability and a race-inspired look
• Folding lever design helps protect against damage in the event of a crash or drop
• Piston seals and pushrod built to the same specification used in MotoGP and WSBK racing
• Hydraulic clutch design only — not compatible with cable-actuated clutch systems
• Mounts to standard 7/8" (22mm) handlebars
• Requires DOT 4 brake fluid and a compatible Brembo clutch reservoir kit (sold separately)
• Delivers unmatched control and confidence-inspiring feel on both street and track