Escapamento RD - Exhaust Options for Yamaha RD 125 & 135

The Yamaha RD series, particularly the RD 125 and RD 135, holds a special place in the hearts of motorcycle enthusiasts. These classic 2-stroke bikes are not just about speed—they are about style, sound, and the thrill of riding a finely tuned machine. One of the most significant upgrades or replacements for these motorcycles is the Escapamento RD, or exhaust system. Choosing the right exhaust can enhance performance, improve sound, and even elevate the bike’s overall aesthetic.

Understanding Escapamento RD

“Escapamento RD” refers specifically to the exhaust systems designed for Yamaha RD motorcycles. These exhausts are available in various styles and materials, from original replacements that maintain factory specifications to high-performance options that maximize power output and sound quality. Most RD exhausts are made from chrome or stainless steel, materials chosen for durability, corrosion resistance, and a classic look that complements the bike’s retro styling.

For 2-stroke engines like the RD 125 and RD 135, the exhaust system is more than just a way to channel gases—it plays a critical role in performance. Proper exhaust design affects engine power delivery, torque, and even fuel efficiency. This makes selecting the right Escapamento RD essential for both casual riders and performance-focused enthusiasts.

Types of Escapamento RD

When it comes to Escapamento RD, there are several options:

Original Replacement Exhausts
These are exact replicas or OEM (Original Equipment Manufacturer) parts that match the original specifications of Yamaha RD motorcycles. They are ideal for riders who want to preserve the bike’s classic look and sound. These exhausts provide reliable performance, are often easier to install, and maintain the bike’s authenticity, which can be important for collectors.
Performance Exhausts
For those looking to increase power and improve throttle response, performance exhausts are an excellent choice. Brands like Gemoto and Rocket have developed high-quality exhaust systems specifically for the RD series. These are usually designed with a tuned expansion chamber that optimizes the exhaust flow for 2-stroke engines, which can result in higher horsepower and better torque curves.
Custom and Aftermarket Exhausts
Beyond OEM and branded performance options, there are many aftermarket or custom-built Escapamento RD systems. Riders often choose these for unique aesthetics, improved sound, or specialized performance characteristics. Some may feature lightweight materials like titanium, offering both weight savings and enhanced heat resistance.

Material Considerations

When choosing an Escapamento RD, the material plays a key role in durability, maintenance, and performance:

Chrome: Offers a shiny, classic look and is resistant to rust if maintained properly. It is heavier than stainless steel but provides that retro style many RD owners desire.
Stainless Steel: Highly durable, corrosion-resistant, and requires less maintenance than chrome. Stainless steel is common in performance exhausts because it balances longevity with functionality.
Aluminum & Titanium: Lightweight options primarily found in custom or high-performance exhausts. They improve power-to-weight ratio and can enhance engine responsiveness.

Sound and Performance

One of the biggest reasons riders upgrade to a new Escapamento RD is sound. Yamaha RD motorcycles are renowned for their 2-stroke “growl,” and a well-chosen exhaust can make this sound even more distinctive. Performance exhausts often produce a deeper, sharper tone, while OEM-style replacements keep the sound closer to the original factory setting.

From a performance perspective, the exhaust’s shape, diameter, and chamber design are critical for 2-stroke engines. Expansion chambers are designed to improve scavenging—the process by which exhaust gases are expelled and fresh air-fuel mixture enters the cylinder. Properly tuned exhausts can increase top-end power without sacrificing low-end torque, giving riders the best of both worlds.

Choosing the Right Escapamento RD

Selecting the right exhaust for your Yamaha RD 125 or 135 involves balancing several factors:

Purpose: Are you restoring the bike, riding casually, or looking for racing performance? OEM exhausts suit restorations and casual rides, while performance exhausts target speed and power.
Material Preference: Consider the durability, weight, and maintenance requirements of chrome, stainless steel, or other materials.
Sound Level: Decide whether you want a classic, subtle tone or a more aggressive, sporty sound.
Budget: Performance and custom exhausts can be more expensive than OEM replacements, but they may offer significant improvements in power and aesthetics.

Installation and Maintenance

Installing an Escapamento RD can be straightforward if it is an OEM replacement, but performance or custom exhausts may require professional fitting. Ensuring proper alignment, gasket sealing, and mounting is critical to prevent leaks, maximize power, and avoid engine damage.

Maintenance is equally important. Chrome exhausts may require polishing to prevent rust, while stainless steel exhausts need occasional cleaning to maintain their finish. Performance exhausts often need regular inspection to check for cracks or weld integrity due to higher stress from increased engine power.

Popular Brands and Options

Several brands have become synonymous with high-quality Escapamento RD systems:

Gemoto: Known for offering performance-focused exhausts with precision-engineered expansion chambers for the RD series.
Rocket: Offers both chrome and stainless steel options with improved sound and power delivery.
Original Yamaha OEM: Ideal for collectors and restoration projects.

Additionally, many custom exhaust manufacturers create unique Escapamento RD systems tailored to specific riding styles, from café racers to street performance builds.

Conclusion

For owners of Yamaha RD 125 and RD 135 motorcycles, the Escapamento RD is more than just an accessory—it is a performance and style statement. Whether you are preserving the classic charm of your RD with an OEM replacement or enhancing performance with a high-quality expansion chamber exhaust, the right choice can transform your riding experience.

From sound quality to engine performance, material durability, and aesthetic appeal, the options are vast. Understanding your goals and the unique characteristics of 2-stroke exhaust systems is key to making an informed decision. With the right Escapamento RD, your Yamaha RD can not only turn heads but also deliver the exhilarating performance that made these bikes legends in the first place.

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