Brembo GP4-RR/RX/RS/MS Radial Brake Calipers (100mm/108mm/130mm)

Premium Brembo race-engineered calipers built for riders who demand MotoGP-level braking performance, consistency and control. The GP4 Series represents the pinnacle of Brembo’s radial-mount technology, offering exceptional feel, thermal stability and stopping power across four distinct models: GP4-RR, GP4-MS, GP4-RX and the new GP4-RS.

GP4-RR – Pure Racing Performance

The GP4-RR is aimed squarely at competitive riders who want immediate bite and maximum braking authority. Its CNC-machined monoblock body delivers extremely high stiffness, resulting in fast response and race-level power under all conditions.

GP4-MS – Balanced Power & Control

The GP4-MS provides an ideal blend of race aggression and refined street modulation. It offers a smooth, linear brake feel while maintaining the strength and consistency needed for aggressive riding or track days.

GP4-RX – MotoGP-Derived Precision

The GP4-RX offers the most advanced engineering in the lineup, featuring enhanced cooling efficiency and superior rigidity for ultra-stable performance during long, demanding race sessions. Designed for professional-level competition, it delivers unmatched control and feedback.

GP4-RS – Lightweight Race-Spec Evolution

The GP4-RS is the latest evolution in Brembo’s GP4 series, engineered with ultra-lightweight construction and advanced heat-dissipation channels. It delivers razor-sharp braking precision, reduced rotating mass, and exceptional fade resistance for riders demanding maximum performance in endurance, sprint racing, and high-intensity track applications. Designed to provide instant bite with the smoothest modulation in the lineup, the RS offers unmatched responsiveness and braking feel.

Mounting Options – 100mm / 108mm / 130mm

100mm Radial: Common on race-spec forks and superbikes designed around MotoGP-style hardware.
108mm Radial: Standard on many European superbikes requiring stable, consistent clamping force.
130mm Radial: Ultra-rigid racing configuration built for extreme braking loads and maximum stability.

Key Features

• CNC-machined monoblock construction for maximum precision and stiffness

• High-efficiency four-piston layout with exceptional heat management

• Premium nickel, titanium-look, or hard-anodised finishes depending on model

• Predictable lever feel with powerful, fade-resistant braking

• Track-proven performance with world-class Brembo engineering

• Direct upgrade for riders seeking superior race geometry, bite, and feedback

• Optimised cooling and rigidity across the full GP4 range

Brake Pad Compatibility

Compatible with Brembo’s high-performance compounds, including:

• Brembo Z04 Racing Pads

• Brembo SA / SC sintered pads

• Carbon and ceramic racing pads

Fitment & Compatibility

Fitment depends on your motorcycle’s fork spacing (100/108/130mm) and rotor diameter/thickness.
Always confirm compatibility using Brembo’s official catalog and reference tools:
brembo.com