Item Summary

• Brembo Part # XA7G755
• Brembo Racing Master cylinder Piston Size 17 with 18 Lever Axis Ratio
• Technical Drawings

About the Product

Brembo Racing PR 17x18 EVO Billet Radial Front Brake Master Cylinder

Brembo XA7G755 | Long Folding Lever | Without Reservoir

Item Summary

• Brembo Racing PR 17x18 EVO billet radial front brake master cylinder designed for high-performance sportbike and racing applications.
• Features a 17 mm piston with 18 mm leverage ratio for exceptional braking precision, modulation, and lever feel.
• Precision CNC-machined billet aluminum body with premium Brembo Racing finish.
• Supplied with a long folding brake lever to help reduce crash damage during track or race use.
• Technical drawing specifications confirm M10x1 banjo fitting thread, DOT 3 / DOT 4 fluid compatibility, and 23–26 Nm recommended fitting torque with seal.
• Reservoir not included.

About the Product

The Brembo Racing XA7G755 PR 17x18 EVO Radial Front Brake Master Cylinder is a top-tier racing brake upgrade engineered for riders demanding maximum braking performance, precision, and consistency on both the street and track. Developed using Brembo’s extensive motorsport expertise, this EVO-series master cylinder delivers superior hydraulic efficiency and enhanced rider feedback under aggressive braking conditions.

Built around a 17 mm piston and 18 mm lever ratio, the PR 17x18 configuration offers a highly responsive braking feel with excellent modulation and predictable power delivery. This setup is favored by riders seeking strong braking performance while maintaining smooth control during corner entry and high-speed braking zones.

The master cylinder features a beautifully machined CNC billet aluminum radial body, providing increased rigidity and improved hydraulic efficiency compared to traditional axial designs. The included long folding lever enhances rider comfort and helps minimize lever damage in the event of a tip-over or crash, making it especially popular for trackday and racebike applications.

According to the Brembo technical drawing, the XA7G755 utilizes an M10x1 brake line thread, is compatible with DOT 3 and DOT 4 brake fluid only, and specifies a recommended installation torque of 23–26 Nm with seal. The compact racing design is intended for use with an external fluid reservoir, allowing riders to customize their cockpit setup for both racing and premium street builds.

Whether upgrading a superbike, racebike, trackday motorcycle, or custom performance build, the Brembo PR 17x18 EVO master cylinder delivers the precision braking control and race-proven reliability expected from one of the most respected names in motorcycle braking technology.

Technical Specifications

Key Features

PR 17x18 Racing Configuration

The 17x18 setup delivers outstanding braking modulation and direct lever feel, making it ideal for aggressive street riding and track use.

EVO Billet Radial Construction

Precision CNC-machined billet aluminum body improves rigidity, hydraulic efficiency, and overall braking consistency under extreme conditions.

Long Folding Lever

The folding lever design helps reduce damage during crashes or tip-overs while maintaining excellent rider ergonomics and comfort.

Race-Proven Brembo Engineering

Developed from Brembo’s world championship racing experience for superior braking performance and reliability.

Perfect for Performance Builds

An excellent upgrade for superbikes, race motorcycles, trackday machines, and premium custom sportbike projects.

Why Choose the Brembo PR 17x18 EVO Master Cylinder?

The Brembo XA7G755 offers the precision, control, and race-level braking performance serious riders demand. Combining billet radial construction, premium hydraulic efficiency, and Brembo Racing pedigree, this master cylinder is designed to deliver maximum confidence during hard braking situations on both the track and high-performance street applications.

Click here to view the complete 2012 Brembo Motorcycle Brakes catalog.

Reservoir Required: When upgrading your master cylinder, you will need an external reservoir to house the excess brake / clutch fluid. The easiest way is to purchase a brake reservoir mounting kit, which has all hardware,hose, clamps, etc included. You can also purchase the reservoirs or tubing separately if you want to custom fit your own.

Banjo Bolts Required: When upgrading your master cylinder, you will need new banjo bolts to connect the master cylinder to your brake lines. Choose a single banjo for OEM brake line configurations (one line to the right caliper with a crossover). Choose a double banjo for dual line configurations (one line to each caliper). For race applications, the banjo bolts do not have pressure switches. For street applications, we recommend banjo bolts with pressure switches that allow you to activate the brake lights.

Brake Fluid Required: Don't forget to purchase some Brake Fluid at the same time, since you will need to re-bleed your brakes after installing your new brake master.