Motorcycle Brake Clutch Master Cylinder Set 22mm Bore for GN125 Replacement

Maintaining proper hydraulic function in your motorcycle's braking system is critical for safety and control. This brake clutch master cylinder set provides the essential components needed to replace worn or failed units on compatible GN125 models. The set includes two master cylinders, each with a 22mm bore, designed to fit standard motorcycle brake and clutch applications. The black-finished construction ensures durability while matching the factory look of most motorcycles. Whether you are restoring an older bike or performing routine maintenance, this replacement set offers a practical and reliable solution without the need for modifications.

Features and Construction Details

Understanding the build and specifications of these master cylinders helps ensure correct selection for your motorcycle. The components are manufactured to meet general motorcycle accessory standards, with a focus on straightforward installation and reliable operation.

22mm Bore Specification

The 22mm bore size is a standard dimension found on many small to medium motorcycle models, including the GN125. This measurement determines the hydraulic pressure generated when the lever is actuated. Using the correct bore size ensures consistent braking performance and proper clutch disengagement.

Black Finished Construction

The cylinders feature a black finish that provides basic corrosion resistance while blending with the existing components on the motorcycle. The metal housing is designed to withstand the hydraulic pressures generated during normal operation. No special maintenance is required beyond regular brake fluid changes.

Installation and Compatibility

This set is intended as a direct replacement for compatible GN125 motorcycles. The package contains two units, typically one for the front brake and one for the clutch, simplifying the ordering process.

Direct Fit for GN125 Models

Designed specifically to match the specifications of GN125 motorcycles, these master cylinders fit without additional adapters. The mounting points and thread sizes are standard for this model, making installation straightforward for anyone with basic mechanical knowledge.

Complete Set of Two Units

The set includes two master cylinders, covering both brake and clutch applications. This ensures you have all the necessary hydraulic components in one order. Each cylinder is identical in construction, simplifying stock management and replacement.

Benefits and Practical Use

Replacing a faulty master cylinder restores proper lever feel and braking authority. This set provides the core components needed to refresh your motorcycle's hydraulic system.

Restored Braking Performance

A worn master cylinder can cause a spongy brake lever or reduced stopping power. Installing these new cylinders restores hydraulic pressure and lever feel, allowing for confident braking. The 22mm bore provides a good balance of power and modulation for light to medium motorcycles.

Reliable Clutch Operation

Clutch master cylinders are prone to failure over time due to seal wear or corrosion. Replacing them ensures smooth clutch engagement and disengagement, reducing the risk of slipping or dragging. This set includes both brake and clutch units for a comprehensive solution.

Easy Maintenance Replacement

These master cylinders are designed for straightforward replacement, reducing downtime. After installation, standard bleeding procedures apply, and no special tools are required. Keeping a spare set on hand can minimise disruption during maintenance intervals.