Brembo Radial Master Cylinder RCS 19 x 18-20 Corsa Corta RR 110E71110

The Brembo RCS 19 x 18-20 Corsa Corta RR radial master cylinder represents the pinnacle of brake lever engineering — forged from hard-anodised aluminium, CNC-machined to exacting tolerances, and developed directly from MotoGP and WSBK technology. Part number 110E71110 builds on the acclaimed 19 RCS Corsa Corta lineage and earns its RR designation through a level of material quality, adjustability, and finish that sets it apart from every other radial master cylinder on the market. The Red Dot Award 2023 for outstanding design is simply the formal recognition of what riders immediately feel in the hand.

Key Features

• Three-position eccentric adjustment (N / S / R) lets you dial in lever travel from maximum free-play for road comfort through to the near-zero dead-stroke demanded on track.
• Ratio Click System delivers two selectable lever ratios — 19 x 20 (black marking) for a progressive, confidence-inspiring feel, or 19 x 18 (red marking) for a sharper, more direct braking response.
• CNC-machined components throughout, produced from forged aluminium and finished with a hard-anodised surface that resists wear, corrosion, and the inevitable contact of road debris.
• Folding lever provides protection against damage in a tip-over without compromising feel or reach adjustment.
• Integrated mechanical brake light switch enables clean, straightforward wiring into any braking system.
• ABS compatible — suitable for the full range of modern sport, superbike, and track-prepared motorcycles.

Engineering Pedigree

The Corsa Corta RR is the product of Brembo's decades of involvement at the very top of motorsport. The three-position eccentric system is not merely a comfort feature — it is the same philosophy used to optimise brake feel between qualifying and race conditions at World Superbike level. Each lever position shortens or lengthens the effective stroke before piston engagement, allowing a rider to fine-tune feedback to suit brake pad compound, disc condition, and personal preference without changing any hardware. The forged aluminium body offers a stiffness-to-weight ratio that cast components simply cannot match, and the hard-anodised finish ensures the master cylinder looks and performs as well after years of use as it does on the day it arrives.

Precision on Road and Track

In N (Normal) mode the master cylinder behaves with the progressive, forgiving character that makes long road rides and unfamiliar circuits approachable. Switch to S (Sport) for a tighter initial response suited to fast road riding and trackdays. Dial to R (Race) and the lever engages almost immediately, giving a seasoned rider instant bite with no wasted movement — the kind of feel that shaves tenths on a superpole lap. The Ratio Click System adds a further layer of tuning: 19 x 20 demands slightly more lever force but offers granular modulation, while 19 x 18 increases mechanical advantage for riders who want maximum initial deceleration with less hand effort.

Fitment and Compatibility

The Brembo RCS 19 x 18-20 Corsa Corta RR is a universal radial master cylinder compatible with a broad range of sport and superbike platforms. Confirmed fitment includes, but is not limited to:

• Aprilia RSV4, RSV4 R, RSV4 RR, RSV4 RF, RSV4 1100, RSV4 1100 Factory, RS 660, RS 457
• BMW S1000RR, HP4, HP4R, M1000RR
• Ducati 848, 899, 959, 1199, 1199 R, 1199 S, 1299, 1299 S, V4, V4 R, V4 S
• Honda CBR 600 RR, CBR 1000 RR, CBR 1000 RR-R
• Kawasaki ZX-6R, ZX-10 R, ZX-10 RR, ZX-4 RR, Ninja 400
• KTM RC 390, RC8 1190
• MV Agusta F3, F4
• Triumph Daytona 675, Daytona 675 R, Daytona 765, Daytona 765 Moto 2, Street Triple 765 R, Street Triple 765 RS
• Yamaha R1, R1M, R3, R6, R7, R9
• Bimota KB998 Rimini
• CFMoto, QJMotor, and other universal 22 mm handlebar fitments

The master cylinder uses an M10 x 1.0 banjo thread and accepts DOT 4 or DOT 5.1 brake fluid, covering virtually every modern sport motorcycle application.

Available Spare Parts

The RCS 19 Corsa Corta RR is fully supported by Brembo's spare parts programme. The following components are available separately:

• Lever tip inserts (standard and racing profile)
• Handlebar clamp with mounting bolts
• Reach adjustment screw
• Rubber dust caps, brake light switch, and bleed screws

Specifications