Brembo 19 RCS Radial Brake Master Cylinder – Universal Fit (7/8" Bars & Clip-Ons)

The Brembo 19 RCS Radial Brake Master Cylinder is engineered for riders who demand more from their braking system — more feel, more control, and more adjustability than any stock master cylinder can offer. The RCS19's signature feature is its adjustable lever ratio, changed via a simple screw-turn eccentric drive, letting you dial between two distinct brake feel profiles without tools. A color-coded pivot rod end makes it easy to confirm your current setting at a glance.

Purpose-built for twin rotor systems paired with axial (non-floating) or 4-piston radial calipers, the RCS19 brings WSB- and MotoGP-grade internal tolerances to street and track riders alike.

Specifications

• Piston Diameter: 19mm
• Lever Ratio Settings: 20×19 (street) or 19×18 (track/racing)
• Body: Forged aluminum alloy, CNC machined, hard anodized finish
• Piston Seals & Push Rod: WSB/MotoGP-spec tolerances
• Lever: Folding forged aluminum, black finish with Brembo racing logo
• Fitment: 7/8" handlebars or clip-ons
• Compatible Caliper Types: Axial (non-floating) or 4-piston radial calipers on twin rotor systems
• Brembo Part #: 110.A263.10

In the Box

• Brembo 19 RCS Radial Master Cylinder
• Folding lever (installed)
• Micro switch for rear brake light

Notes

• Lever ratio is adjustable between street (20×19) and track (19×18) settings via eccentric screw — no tools required
• Replacement half and full lever kits available separately
• Spare and replacement Brembo parts are available
• Images are for reference and may vary slightly from final product