Front Rear Brake Master Cylinder for Honda CR125R CR250R CRF250R CRF250X CRF450R

Front Rear Brake Master Cylinder for Honda

This front rear brake master cylinder is a replacement hydraulic assembly that converts lever or pedal force into brake pressure for your Honda off-road motorcycle, and it cross-references common OEM part numbers used across the CR and CRF families.

Overview

This brake master cylinder is a direct-fit replacement hydraulic pump that pressurizes brake fluid to actuate your calipers on both front and rear systems. It is built for riders maintaining Honda CR125R, CR250R, CRF250R, CRF250X, and CRF450R machines who need dependable stopping power without paying OEM prices. Each brake master cylinder is inspected for bore finish and seal integrity before shipping.

Built For Performance

• Precision-machined bore for consistent hydraulic pressure and predictable lever feel
• Durable alloy body resists corrosion from mud, water, and brake fluid exposure
• Seals rated for high-pressure braking cycles in motocross and trail conditions
• Mounting points matched to factory fitment for straightforward bolt-on installation
• Compatible with standard DOT brake fluid for easy bleeding and servicing

Fits These Machines

• for Honda CR125R
• for Honda CR250R
• for Honda CRF250R
• for Honda CRF250X
• for Honda CRF450R

On-The-Job Use

• Motocross track riding and racing
• Trail and enduro riding
• Replacing a leaking or seized master cylinder during rebuilds
• Restoring braking response on older CR and CRF models

Specs At A Glance

Good To Know

Q: Do I need to bleed the brakes after installing this master cylinder? A: Yes, bleeding is required to remove air from the hydraulic system before riding. Follow your model's service procedure and top off with fresh DOT brake fluid.

Q: Will this fit both the front and rear brake systems? A: This listing covers a brake master cylinder used in front or rear applications depending on your model. Confirm the position and mounting style on your machine before ordering.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.