Motorcycle Rear Master Cylinders

Reliable Stopping Power: Motorcycle Rear Master Cylinders

Your rear brake master cylinder is the heart of your braking system. It’s the critical component that converts the pressure from your foot into the hydraulic force needed to stop your bike. Whether you're replacing a worn-out unit on a stock bike or looking for a clean chopper rear master cylinder for a custom build, having a reliable master cylinder is non-negotiable for a safe ride.

What to Look For in a Rear Master Cylinder

Choosing the right motorcycle rear brake master cylinder is crucial for performance and safety. Here’s what you need to know:

• Bore Size is Critical: The internal bore size (e.g., 5/8", 3/4") is the most important factor. A mismatched bore size for your brake caliper will result in a spongy, ineffective pedal (too small) or a rock-hard pedal with no feel (too big). Always match it to your brake system's requirements.

• Application & Style: Are you looking for a stock-style replacement for your Sportster rear master cylinder or a minimalist, finned unit for a custom Harley rear master cylinder setup? The right choice complements your build's overall aesthetic while providing the performance you need.

• When to Replace: If your current master cylinder is leaking fluid, feeling spongy even after bleeding the brakes, or failing to hold pressure, it’s time for a replacement. A new, high-quality unit is a smart investment in your safety.

• Completing The System: A new master cylinder is just one part of a reliable brake system. We also stock a full range of motorcycle rear master cylinder components, including rebuild kits, lines, and fittings, to help you complete the job right.

Why Choose Lowbrow Custom for Your Rear Master Cylinder?

Because stopping is not optional. As builders, we understand the difference between a rear master cylinder motorcycle part that just "fits" and one that performs reliably under pressure. We've curated a selection of high-quality master cylinders from trusted brands that we would confidently run on our own bikes, ensuring you get a product that is both safe and stylish.

When you choose Lowbrow Customs, you're not just buying parts; you're joining a community of builders. We're committed to backing you up with:

• Free Shipping on all US orders over $99.

• 90-Day Hassle-Free Returns because we stand by what we sell.

• Real-Deal Tech Support from our experienced team, ready to offer expert advice for your projects.

Upgrade your braking system with confidence. Explore our full selection of rear master cylinders and get the stopping power your bike deserves.