When it comes to Yamaha RD motorcycles, one of the most important components that directly affects performance and riding experience is the escapamento RD (RD exhaust). More than just a pipe to release gases, the exhaust system of a two-stroke engine plays a crucial role in power delivery, sound, and style. Whether you own an RD125, RD135, or the iconic RD-Z, choosing the right escapamento RD can make a dramatic difference in how your bike performs on the road or the track.

In this guide, we’ll explore everything about RD exhausts: their functions, types, materials, performance benefits, how to choose the best one, and tips for maintenance.

1. What Is Escapamento RD and Why Does It Matter?

The escapamento RD is far more than a simple exhaust pipe. On Yamaha RD motorcycles, especially the legendary two-stroke models, the exhaust has a direct impact on engine efficiency and power output. Unlike four-stroke bikes, two-stroke engines rely on the exhaust chamber to create back pressure that improves cylinder filling and combustion efficiency.

Key roles of an escapamento RD include:

• Expelling combustion gases efficiently from the engine.
• Controlling resonance and back pressure, which directly influences acceleration and top speed.
• Shaping the sound of the motorcycle, from a deep growl to a sharp racing note.
• Enhancing aesthetics, with chrome, stainless steel, or custom finishes.
• Complying with legal regulations regarding noise and emissions (in certain regions).

For RD owners, upgrading to a performance escapamento RD can mean unlocking hidden horsepower, improving throttle response, and making the bike sound as aggressive as it looks.

2. Types of Escapamento RD Available

There are several kinds of escapamento RD systems available on the market, each designed for specific purposes. Choosing the right type depends on whether you want original style, racing performance, or a custom look.

● Original Factory Exhaust

This is the stock escapamento RD provided by Yamaha. It ensures perfect fitment, balanced performance, and compliance with regulations. However, it may not provide the maximum performance potential compared to aftermarket options.

● Dimensioned (Performance-Tuned) Exhaust

These exhausts are specifically engineered to maximize the power curve of the RD’s two-stroke engine. For example:

• Medium-Low power exhausts enhance torque for city and highway riding.
• Medium-High exhausts favor higher RPM performance for racing and track use.

● Sport / Aftermarket Exhaust

Aftermarket brands design sport exhausts that combine performance and aesthetics. They usually feature lighter materials, larger diameter outlets, and aggressive sound profiles. Popular among riders who want their RD to stand out both in look and sound.

● Custom Handmade Exhausts

Some enthusiasts prefer custom escapamento RD systems, handmade by specialists. These are tailored to the rider’s needs, offering unique performance tuning and personalized designs.

3. Best Materials Used in Escapamento RD

The material of the exhaust has a huge influence on durability, weight, and performance. Common options include:

Stainless Steel (Inox 304): Extremely durable, corrosion-resistant, and capable of withstanding high temperatures. A top choice for premium escapamento RD models.

Mild Steel (Carbon Steel): More affordable and easier to manufacture but prone to rust if not properly maintained. Often used in classic-style exhausts.

Chrome-Plated Steel: Offers a shiny and stylish finish, ideal for restoring classic RD bikes. However, chrome can peel over time if exposed to harsh conditions.

Carbon Fiber: Lightweight and modern, often used in performance-oriented silencers or mufflers for RD motorcycles.

When choosing an escapamento RD, stainless steel or high-quality chrome options are the most popular for their combination of durability and aesthetics.

4. Performance Benefits of Upgrading Escapamento RD

Installing a performance escapamento RD can dramatically improve your motorcycle’s riding characteristics. Here’s what you can expect:

• More Power: A properly designed exhaust optimizes gas flow, delivering noticeable horsepower gains.
• Better Throttle Response: Acceleration becomes sharper, especially in the mid-range RPMs.
• Improved Torque: With the right dimensioned exhaust, your RD can have stronger pull in city traffic or high-speed rides.
• Weight Reduction: Performance exhausts are usually lighter than stock systems, making your bike more agile.
• Sound Upgrade: Many riders choose aftermarket escapamento RD systems to enjoy the aggressive two-stroke roar.
• Unique Style: Custom finishes like polished stainless steel, matte black, or carbon tips enhance the RD’s visual appeal.

5. How to Choose the Right Escapamento RD for Your Bike

Choosing the perfect escapamento RD requires balancing performance, aesthetics, and budget. Here are the most important factors:

Riding Purpose:

• City and daily use → Opt for medium-low dimensioned exhausts for better torque.
• Racing or high-speed use → Choose medium-high or racing exhausts for more top-end power.

Compatibility:

• Ensure the exhaust is specifically designed for your RD model (RD125, RD135, RD-Z).
• Check fitment with frame, footpegs, and side covers.

Material & Finish:

• Stainless steel for durability.
• Chrome for vintage looks.
• Carbon for modern performance style.

Legal Restrictions:

Some regions limit exhaust noise levels. Make sure your choice complies with local laws.

Budget:

• Original exhausts tend to be more expensive.
• Aftermarket escapa mento RD options range from affordable to high-end custom builds.

6. Maintenance Tips for Escapamento RD

To keep your escapamento RD performing well and looking good, follow these simple maintenance tips:

• Clean Regularly: Two-stroke engines leave carbon deposits. Clean the inside periodically to prevent blockages.
• Protect Against Rust: Use anti-corrosion sprays if your exhaust is made of mild steel or chrome.
• Check Joints & Mounts: Tighten bolts and brackets regularly to prevent vibrations or leaks.
• Replace Gaskets: Always use new gaskets when installing or re-fitting your exhaust.
• Avoid Water Damage: After riding in the rain, wipe down the exhaust to prevent rust.

Proper care extends the life of your escapamento RD and ensures consistent performance.

Conclusion

The escapamento RD is not just a part of the motorcycle—it’s the heart of performance for Yamaha RD bikes. By choosing the right exhaust system, whether stock, dimensioned, or custom-made, you can significantly improve power, torque, sound, and overall riding enjoyment.

For enthusiasts, upgrading the exhaust is often the first and most rewarding modification you can make on an RD. With the right choice and proper maintenance, your RD will not only run better but also look and sound like the true classic it is.