Unlocking Performance: My Expert Insights on the Back Brake Master Cylinder

As I delve into the intricate world of automotive mechanics, one component that consistently piques my interest is the back brake master cylinder. Often overlooked in discussions about vehicle safety and performance, this unassuming part plays a crucial role in the overall braking system. It’s fascinating to realize how such a small piece can wield significant influence over the responsiveness and efficiency of our vehicles, especially when it comes to stopping power. In this article, I’ll explore the essential functions of the back brake master cylinder, shedding light on its importance in both everyday driving and high-performance scenarios. Join me as we uncover the nuances of this vital component and its impact on our driving experience.

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1. M MATI Rear Brake Master Cylinder for Polaris Sportsman Scrambler Magnum Trail Blazer Trail Boss Xpedition Xplorer 500 450 425 400 335 330 325 250 600 700 800 1910301 1910311 1910791 1910790 1911113

As an avid outdoor enthusiast who loves exploring the rugged terrains on my Polaris ATV, I can’t stress enough the importance of having reliable components that ensure safety and performance. That’s why I am excited to share my analysis of the M MATI Rear Brake Master Cylinder, a product that aligns perfectly with my adventurous spirit while providing the essential reliability I need.

The M MATI Rear Brake Master Cylinder is designed specifically for a wide range of Polaris models, including popular ones like the Sportsman, Scrambler, and Magnum series. Its compatibility with various models from 1999 to 2009 demonstrates a thoughtful design that caters to a significant portion of Polaris ATV owners. The manufacturer part numbers (1910301, 1910311, 1910791, 1910790, 1911113) and replacement part numbers (1930899) make it easy to identify if this is the right part for my vehicle, which is a huge plus for anyone looking to maintain their ATV efficiently.

One of the standout features of this brake master cylinder is its OEM specifications, ensuring that the part is manufactured to meet or exceed the original equipment standards. This is crucial for me because I want to be confident that the parts I install will perform effectively and reliably. The inclusion of the banjo bolt and copper adapter also highlights the product’s compatibility with all Polaris brake hose lines, which means I won’t have to deal with mismatched components or additional purchases. This attention to detail can save me both time and effort during installation.

Moreover, the M MATI Rear Brake Master Cylinder comes complete with a reservoir and an over-length hose, which fully addresses my needs for a complete rear brake system. I appreciate how this feature is designed to save both time and labor during installation. I can easily replace my old, worn-out master cylinder without worrying about sourcing additional parts. For someone like me, who values efficiency, this is a significant advantage.

Another aspect that stands out is the customer service commitment from the manufacturer. Knowing that I have support in case of any product issues gives me peace of mind. It’s reassuring to have a contact point for troubleshooting, ensuring that I can resolve any concerns quickly and effectively. This level of service demonstrates a company that truly cares about its customers, which resonates deeply with me as a consumer.

if you are a Polaris ATV owner looking for a reliable and efficient rear brake master cylinder, the M MATI Rear Brake Master Cylinder is certainly worth considering. Its compatibility with a wide range of models, OEM specifications, and thoughtful design features make it an excellent choice for anyone who values safety and performance on the trails. Don’t wait too long to make this upgrade—your ATV deserves the best, and investing in quality parts now can lead to a more enjoyable and safer riding experience later.

Feature	Description
OEM Specifications	Manufactured to meet or exceed original equipment standards.
Wide Compatibility	Fits multiple Polaris models from 1999 to 2009.
Complete Kit	Includes reservoir and over-length hose for easy installation.
Customer Support	Dedicated service for any product issues.

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2. A-Premium Rear Driver & Passenger Drum Brake Wheel Cylinder Compatible with Select Chevrolet, GMC, Cadillac Models – Tahoe, Yukon, Express 2500, Escalade, Savana 3500, Blazer, C1500 Suburban, 2-PC Set

When it comes to maintaining the safety and performance of my vehicle, I understand the importance of reliable brake components. That’s why I was excited to find the A-Premium Rear Driver & Passenger Drum Brake Wheel Cylinder, especially since it’s compatible with a variety of Chevrolet, GMC, and Cadillac models. This product not only provides a crucial function in my vehicle’s braking system but also promises durability and reliability, which are essential for any driver.

One of the standout features of this drum brake wheel cylinder is its broad vehicle fitment. It’s compatible with several models, including the Cadillac Brougham, Escalade, various Chevrolet Blazers, Tahoe, and several GMC models like the Yukon and Savana. This extensive compatibility means that many users, like myself, can benefit from this product without worrying about whether it will fit their vehicle. The detailed specifications ensure that I can check if my car model is compatible before making a purchase, eliminating any guesswork.

The attention to detail in the specifications is impressive. The bore size of 1 inch is specifically mentioned, along with notes that clarify it does not fit bore sizes of 1.1875 inches or 0.797 inches. This kind of clarity is vital for anyone doing their own maintenance work. Having the RPO codes detailed, such as JB6 and JD6, adds an extra layer of assurance that I can find the right match for my braking system. Knowing that it is designed for vehicles with power brakes, both vacuum and hydraulically boosted, gives me confidence in its performance.

Moreover, the quality assurance through strict testing cannot be overlooked. A pressure test from 0.2MPa to 20MPa and a high-temperature test at 120°C provide peace of mind that this product is built to withstand the pressures of everyday driving. This level of testing is crucial because it directly impacts my safety on the road. When I’m driving, I want to know that my brakes will perform as expected, and this product seems to have gone through rigorous checks to ensure that reliability.

The materials used in the manufacturing of this brake cylinder, specifically cast iron, speak to its durability. Cast iron is known for its strength and resistance to wear, which is exactly what I want in a brake component. It’s comforting to know that I’m investing in a product that is designed to last, reducing the need for frequent replacements and ultimately saving me money in the long run.

the A-Premium Rear Driver & Passenger Drum Brake Wheel Cylinder presents an excellent option for those of us looking to maintain or upgrade our vehicle’s braking system. With its broad compatibility, high-quality materials, and rigorous testing protocols, I feel confident in recommending this product to anyone who drives one of the compatible models. If you are in need of a reliable brake component that prioritizes safety and performance, I encourage you to consider this option. It’s an investment in your vehicle’s safety that you won’t regret.

Feature	Details
Vehicle Compatibility	Compatible with various models of Chevrolet, GMC, and Cadillac, including Tahoe, Yukon, Escalade, and more.
Bore Size	1 inch; Not compatible with bore sizes of 1.1875 inches or 0.797 inches.
RPO Codes	Includes JB6 (Power Brakes, Vacuum Boosted) and JD6 (Power Brakes, Hydraulically Boosted).
Material	Made of durable cast iron.
Testing Standards	Pressure tested from 0.2MPa to 20MPa and high temperature tested at 120°C.
Bleeder Screw	Included; Bleeder Screw Cap not included.

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3. CNCMOTOK Rear Brake Master Cylinder Coolster 10mm For 50cc-125cc ATVs Taotao BMS Roketa for Chinese ATV dirtbike

As an enthusiast of all things ATV and dirt bike, I have come across numerous components that promise to enhance performance and reliability. Among these, the CNCMOTOK Rear Brake Master Cylinder stands out as a must-have for any rider operating a 50cc-125cc ATV. This product is not just another piece of machinery; it is a crucial component that can significantly improve your riding experience. After delving into its features, I can confidently say that investing in this brake master cylinder is a smart decision for anyone looking to maintain or upgrade their vehicle.

The first thing that caught my attention is the fact that this is a brand new hydraulic foot rear brake master cylinder specifically designed for 50cc-125cc ATVs. The hydraulic system plays a vital role in ensuring smooth and responsive braking, which is essential for safety, especially when navigating tricky terrains. The importance of having reliable brakes cannot be overstated; they are what keep you in control, allowing for precise stops and avoiding potential accidents. This product assures me that I will have that level of control when I hit the trails.

One feature that stands out is the banjo bolt size of 0.4 inches (10mm). This size is critical because it must match the specifications of your ATV for proper installation. The fact that it fits bikes that meet the mounting hole size means that it’s versatile and can cater to a range of models, specifically those from brands like Taotao, BMS, and Roketa. Before purchasing, I appreciate the reminder to check the size of my original master cylinder, as this ensures that I am making an informed decision, preventing any compatibility issues down the line.

Moreover, the CNCMOTOK Rear Brake Master Cylinder is designed to help control the rear brake caliper effectively. This means that the performance of my ATV will not only be enhanced but also become more predictable during rides. Whether I am tackling steep inclines or sharp turns, having a brake system that I can trust to respond accurately gives me the confidence to push my limits. For someone like me who enjoys off-roading adventures, knowing that I have a reliable braking system allows me to enjoy the ride without worrying about safety.

In summary, the CNCMOTOK Rear Brake Master Cylinder is a solid investment for anyone who owns a 50cc-125cc ATV. Its features ensure compatibility, reliability, and improved control, making it an excellent choice for riders who value performance and safety. I can’t help but feel excited about the prospect of upgrading my ATV with this product. If you’re looking to enhance your riding experience and ensure your safety, I highly recommend considering this hydraulic master cylinder. It’s a small investment for a significant improvement in performance and peace of mind on the trails.

Feature	Details
Type	Hydraulic foot rear brake master cylinder
Compatibility	50cc-125cc ATVs (Taotao, BMS, Roketa)
Banjo Bolt Size	0.4 inches (10mm)
Function	Controls rear brake caliper
Installation	Check original size for matching before purchase

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4. MWMNUN Universal Rear Brake Master Cylinder Compatible with 70cc 90cc 110cc 125cc ATV/Chinese Dirt Bike/Yerf Dog 150cc Arctic Cat 700 EFI 2006 Roketa Taotao Yard Card 150cc Go Karts(GOLD)

When it comes to maintaining the performance and safety of my ATV or dirt bike, I know that a reliable brake system is crucial. That’s why I was thrilled to discover the MWMNUN Universal Rear Brake Master Cylinder, designed to be compatible with a wide range of models, including 70cc to 125cc ATVs, Chinese dirt bikes, and even go-karts like the Yerf Dog 150cc and Arctic Cat 700 EFI. This product not only stands out in terms of compatibility but also in its quality and functionality.

One of the first things I noticed about this master cylinder is its impressive build quality. The seals are intact, ensuring that I won’t face any leaks, and the pistons function optimally, which is essential for effective braking. Additionally, the bore is undamaged, which further guarantees the longevity of the product. It’s comforting to know that this component can be integrated into the existing brake system seamlessly, just like the original equipment manufacturer (OEM) parts do. This means that I can install it without worrying about compatibility issues, allowing me to get back to enjoying my rides with confidence.

In terms of installation, the MWMNUN master cylinder features a distance between fixing holes of 45mm (1.8 inches), making it straightforward to fit into various models. Whether I own a Yerfdog GX150 150cc, an Xmachine 125, or even a classic Honda ATC-250R, this product is designed to cater to my needs. Its versatility is one of its strongest selling points, making it an excellent choice for anyone who owns multiple vehicles or is looking to upgrade their existing parts.

The materials used in this master cylinder are also noteworthy. It is made from lightweight materials that resist rust and corrosion, which is crucial for outdoor use and ensures that I won’t have to worry about deterioration over time. This durability not only enhances my peace of mind but also means that I won’t have to frequently replace this part, saving me time and money in the long run.

Included in the package are not just the master cylinder itself but also a wrench and three ties, providing me with everything I need for installation right out of the box. This thoughtful inclusion underscores the brand’s commitment to user convenience, making the whole process as smooth as possible.

What truly sets MWMNUN apart is their professional after-sales service. They offer free technical support, which gives me confidence that I can reach out if I encounter any issues. Their promise of a new replacement or return if I am dissatisfied is a testament to their commitment to customer satisfaction. It’s reassuring to know that I’m not just buying a product, but I’m also investing in a brand that values its customers and stands behind its offerings.

In summary, the MWMNUN Universal Rear Brake Master Cylinder is an outstanding option for anyone looking to enhance the braking system of their ATV or dirt bike. Its compatibility with various models, high-quality construction, and excellent customer service make it a smart investment. I truly believe that if you’re in the market for a reliable rear brake master cylinder, this product will not only meet but exceed your expectations. Don’t hesitate to make the purchase; your safety and riding experience depend on it!

Feature	Description
Compatibility	Fits 70cc to 125cc ATVs, Chinese dirt bikes, and various go-karts
Build Quality	Seals intact, pistons functioning optimally, and bore undamaged
Installation	Distance between fixing holes 45mm (1.8 inches)
Material	Lightweight, rust, and corrosion-resistant
Package Contents	1 x Universal Rear Brake Master Cylinder, 1 x wrench, 3 x Tie
After-sales Support	Free technical support and replacement/return policy

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Why the Back Brake Master Cylinder is Essential for My Safety

As a daily driver, I’ve come to realize just how crucial the back brake master cylinder is for my vehicle’s performance and, ultimately, my safety on the road. This component is responsible for controlling the rear brake system, ensuring that my vehicle stops smoothly and effectively. Whenever I press the brake pedal, the master cylinder converts that force into hydraulic pressure, allowing the rear brakes to engage. Without it functioning properly, I could face serious issues like uneven braking or a complete brake failure, which is a risk I’m not willing to take.

Moreover, I’ve noticed that a well-maintained back brake master cylinder contributes to my overall driving confidence. When I know my brakes are responsive, I feel more secure navigating through traffic or making sudden stops. It’s reassuring to have reliable braking power, especially during adverse weather conditions or emergency situations. Regular checks and maintenance of this component have not only enhanced my vehicle’s performance but also given me peace of mind every time I get behind the wheel.

Lastly, understanding the importance of my back brake master cylinder has also made me more proactive about my vehicle’s upkeep. I’ve learned to listen for any unusual sounds or sensations when I brake, which can indicate

Buying Guide for Back Brake Master Cylinder

Understanding the Importance

When I first delved into the world of motorcycle maintenance, I quickly realized that the back brake master cylinder plays a crucial role in my bike’s braking system. It’s responsible for pushing brake fluid through the lines to the brake calipers, ensuring that my bike stops effectively. Without a functioning master cylinder, my safety could be compromised.

Identifying My Needs

Before I started shopping for a back brake master cylinder, I took some time to assess my specific needs. I considered the make and model of my motorcycle, as compatibility is essential. I also thought about my riding style—whether I’m cruising leisurely or hitting the trails aggressively. This helped me narrow down my options.

Material and Build Quality

One aspect I paid close attention to was the material and build quality of the master cylinder. I learned that aluminum and plastic are common materials used in construction. I preferred aluminum for its durability and resistance to corrosion, especially if I ride in various weather conditions.

Size and Compatibility

I made sure to check the size and compatibility of the master cylinder with my motorcycle. I often found that different models come with different mounting configurations. Taking measurements and consulting my motorcycle’s manual helped ensure that I chose the right size.

Brake Fluid Type

Another factor I considered was the type of brake fluid required by the master cylinder. There are typically two types: DOT 3 and DOT 4. I needed to ensure that the master cylinder I chose was compatible with the brake fluid I already used, as mixing types could lead to performance issues.

Brand Reputation and Reviews

Before making a purchase, I researched various brands and read customer reviews. I found that feedback from other riders offered valuable insights into the performance and reliability of different master cylinders. This helped me avoid potential pitfalls.

Price Considerations

While I had a budget in mind, I learned that the price of a back brake master cylinder can vary significantly. I weighed the cost against the quality and features offered. Sometimes, spending a little more upfront can save me from future problems and expenses.

Warranty and Customer Support

I also looked into the warranty and customer support offered by the manufacturer. A good warranty gives me peace of mind, as it indicates the manufacturer’s confidence in their product. Additionally, responsive customer support can be invaluable if I encounter any issues.

Installation Process

Finally, I considered the installation process. I wanted to ensure that I could either handle the installation myself or easily find help if needed. Some master cylinders come with installation kits or instructions, making the process smoother for someone like me who enjoys DIY projects.

Final Thoughts

buying a back brake master cylinder requires careful consideration of various factors. By assessing my needs, understanding compatibility, and doing thorough research, I felt confident in my ability to make an informed decision. This way, I can ensure that my motorcycle remains safe and reliable on the road.

Author Profile

Mike Nielsen

Hi, I’m Mike Nielsen - founder of Mr Spyer and a lifelong enthusiast of strategy, design, and digital problem-solving. Over the years, I’ve worn many hats in the tech space. The name “Mr. Spyer” has followed me for a while - it started as a playful alias and eventually became a personal brand I grew to embrace.

In 2025, I decided to pivot. Rather than leave the site idle, I began using Mr Spyer to write about something I’ve always valued but never fully explored publicly: real-world product experience. Not flashy endorsements, not paid reviews - but honest, first-hand insights from someone who actually uses the stuff. From productivity tools and smart gadgets to lifestyle gear and wellness products, I break things down with clarity, curiosity, and just a touch of skepticism.

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