CNC Aluminum Motorcycle Hydraulic Disc Brake Master Cylinder

Upgrade Your Ride with a Direct-Push Hydraulic Brake Master Cylinder

Take your motorcycle's braking performance to the next level with this CNC-machined aluminum hydraulic disc brake master cylinder. Engineered with a direct-push piston structure for fast, linear oil pressure build-up, this universal brake pump delivers confident, responsive braking from the first squeeze — no more spongy or unpredictable feel. Made in Mainland China.

Key Features

1. Direct-Push Structure — Linear, Controllable Braking Force

• Direct-push piston design builds oil pressure quickly and outputs force in a smooth, linear curve — even light lever input produces immediate, proportional braking response.
• Built-in precision sealing ring rated for high temperatures and long-term wear, minimizing oil leaks and maintaining stable, consistent brake performance over time.
• Eliminates the "soft front, hard back" sensation common with stock pumps, giving riders of all experience levels confident, easy-to-modulate braking.

2. CNC All-Aluminum Construction — Lightweight & Highly Durable

• Main body machined from aviation-grade aluminum alloy in a single CNC cutting process, then finished with a hard anodized surface for excellent wear resistance, corrosion resistance, and a sleek black matte aesthetic.
• Significantly lighter than OEM cast-iron pumps — reduces handlebar load and contributes to lighter, more agile handling without sacrificing structural integrity or impact resistance.

3. Plug-and-Play Brake Light Wiring Harness

• Ships factory-installed with a brake light switch harness — no rewiring or circuit modifications needed. Simply swap out the stock component and your brake lights sync automatically.
• Harness materials are oil- and heat-resistant, designed to withstand the demanding conditions of daily riding, resisting aging and wire fatigue over the long term.

4. Multi-Level Adjustable Lever — Fits Every Hand

• Lever reach supports multiple stroke adjustment positions, easily dialed in via the adjustment knob — perfect for riders with different hand sizes and grip strengths.
• Anti-slip lever surface maintains a secure grip even in wet or sweaty conditions, reducing the risk of slippage during sudden stops and improving overall riding safety.

5. Universal 22mm Handlebar Fitment — Direct Replacement

• Designed to the standard 7/8" (22mm) handlebar specification, compatible with the vast majority of motorcycles and electric motorcycles — including popular models from Yamaha, Chunfeng, Jihe, No.9, and Xiaoniu.
• Pre-installed seals and mounting hardware included. No modification to the original vehicle structure required — bolt on and ride.

Specifications

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For general motorcycle safety and maintenance best practices, refer to the U.S. Consumer Product Safety Commission – Motorcycle Safety resource.

Learn more: Master cylinder

Frequently Asked Questions

Q: What handlebar diameter does this motorcycle brake master cylinder fit?

A: This hydraulic brake master cylinder is designed for the standard 7/8" (22mm) handlebar diameter, making it compatible with the vast majority of motorcycles and electric motorcycles on the market today.

Q: Can I install this brake pump on both the front and rear brake systems?

A: Yes. This is a universal hydraulic disc brake master cylinder suitable for both front and rear hydraulic disc brake setups. It comes with all necessary mounting hardware and pre-installed seals for straightforward installation without modifying your original vehicle structure.

Q: Does the brake light switch harness work with my existing wiring?

A: The included brake light switch harness is designed for non-destructive, direct replacement of your stock brake pump. It integrates with your original vehicle circuit without the need for additional wiring modifications, keeping your brake lights fully functional after installation.

Q: Is the lever adjustable for different hand sizes?

A: Absolutely. The lever features multiple stroke adjustment positions accessible via the adjustment knob, allowing riders with different hand lengths and grip strengths to find their ideal brake feel for both daily commuting and longer rides.