Rear Brake Master Cylinder Replacement With Built In Reservoir For Sunl Pitster SSR 110cc 125cc 140cc Dirt Pit Bike No Hassle Bleed Durable Hydraulic Brake Part Fits Chinese 110cc 125cc 140cc Dirt Bikes

Single unit brake master cylinder with built-in reservoir
✔️ Built-in reservoir, fits 110-140cc dirt bikes, 1 pc

Rear brake master cylinder replacement with built-in reservoir designed for 110-140cc dirt bikes. It serves as a direct, reliable hydraulic brake component for common Chinese dirt pit bike models and reloads brake fluid while keeping air out until bleeding is performed after installation.

✅ Built-in reservoir for easy bleed and maintenance
✅ Direct replacement fits many 110cc-140cc dirt bikes
✅ Black finish, durable hydraulic master cylinder
✅ Includes 1 x brake master cylinder
✅ Bleed air from brake system after installation

💡 What is a brake master cylinder used for in small dirt bikes?

This handy component converts lever force into hydraulic pressure and helps manage brake fluid.

- Handy for maintaining braking performance on trail bikes
- Keeps fluid at the correct level to prevent air gaps
- Common upgrade path for 110cc-140cc dirt bikes
- Bleeding after installation ensures air is purged