YOSHIMURA KAWASAKI KX250F 17‑20 RS‑4 SLIP‑ON EXHAUST MUFFLER SS‑AL‑CF” Rear Wheel Rim Hub Tire – Complete Review & Guide
The YOSHIMURA KAWASAKI KX250F 17‑20 RS‑4 SLIP‑ON EXHAUST MUFFLER SS‑AL‑CF” Rear Wheel Rim Hub Tire is a high‑performance upgrade package designed for Kawasaki KX250F motocross bikes from 2017 to 2020. Combining a premium slip‑on exhaust system with a rear wheel rim, hub, and tire, this product delivers enhanced power delivery, reduced weight, and improved traction in off‑road conditions. In this comprehensive overview, we break down its key features, performance benefits, installation considerations, and how it compares with similar components in the market.
Product Overview – What Is the YOSHIMURA KAWASAKI KX250F 17‑20 RS‑4 SLIP‑ON EXHAUST MUFFLER SS‑AL‑CF” Rear Wheel Rim Hub Tire?
The YOSHIMURA KAWASAKI KX250F 17‑20 RS‑4 SLIP‑ON EXHAUST MUFFLER SS‑AL‑CF” Rear Wheel Rim Hub Tire is a combined performance package designed to elevate the capabilities of your Kawasaki KX250F motocross machine. At the core of this package is the RS‑4 slip‑on exhaust muffler crafted by Yoshimura, a brand with decades of race‑proven engineering. This slip‑on system improves exhaust flow and engine response over the stock muffler.
Alongside the slip‑on, the package includes a premium rear wheel assembly — featuring a strong rim, precision‑engineered hub, and a durable off‑road tire selected for traction and durability. Together, these upgrades enhance both acceleration and handling, making the YOSHIMURA KAWASAKI KX250F 17‑20 RS‑4 SLIP‑ON EXHAUST MUFFLER SS‑AL‑CF” Rear Wheel Rim Hub Tire a comprehensive performance boost for serious riders.
Key Features & Specifications
RS‑4 Slip‑On Exhaust Muffler
The heart of the YOSHIMURA KAWASAKI KX250F 17‑20 RS‑4 SLIP‑ON EXHAUST MUFFLER SS‑AL‑CF” Rear Wheel Rim Hub Tire package is the RS‑4 slip‑on muffler. Crafted with stainless steel (SS), aluminum (AL), and carbon fiber (CF) components, this muffler is engineered for:
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Improved horsepower and torque delivery
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Enhanced throttle response
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Race‑ready sound quality
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Reduced weight compared to stock systems
The RS‑4 design focuses on optimizing backpressure and flow to unlock more usable power across the rev range, especially in mid‑to‑high RPMs.
Premium Rear Wheel Components
Included with the exhaust muffler is a high‑quality rear wheel assembly tailored for motocross use:
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Rim: Lightweight yet strong, designed for rough terrain
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Hub: Precision machined for long‑lasting performance
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Tire: Off‑road tread pattern for traction on dirt, sand, and mud
This combination ensures that the YOSHIMURA KAWASAKI KX250F 17‑20 RS‑4 SLIP‑ON EXHAUST MUFFLER SS‑AL‑CF” Rear Wheel Rim Hub Tire not only improves power delivery but also traction and stability on varying surfaces.
Performance Benefits
Enhanced Power and Response
Installing the slip‑on component of the YOSHIMURA KAWASAKI KX250F 17‑20 RS‑4 SLIP‑ON EXHAUST MUFFLER SS‑AL‑CF” Rear Wheel Rim Hub Tire results in more efficient exhaust flow. Riders report a noticeable increase in throttle response and smoother power curve, which is particularly beneficial on technical tracks.
Weight Reduction
The use of lightweight materials such as stainless steel and carbon fiber in the RS‑4 slip‑on reduces overall weight compared to stock exhaust systems. Less weight means improved acceleration and more agile handling.
Improved Traction and Handling
The included rear wheel elements — rim, hub, and tire — work together to provide increased traction off jumps, better grip in corners, and higher confidence on challenging terrain. Pairing high‑performance wheel components with the exhaust upgrades makes the YOSHIMURA KAWASAKI KX250F 17‑20 RS‑4 SLIP‑ON EXHAUST MUFFLER SS‑AL‑CF” Rear Wheel Rim Hub Tire a well‑rounded performance enhancement for motocross riders.
Installation Notes
Installing the YOSHIMURA KAWASAKI KX250F 17‑20 RS‑4 SLIP‑ON EXHAUST MUFFLER SS‑AL‑CF” Rear Wheel Rim Hub Tire package requires basic mechanical skills and standard tools. The slip‑on exhaust attaches to the stock header, and the rear wheel assembly replaces the OEM rear wheel. Proper torque specifications should be followed, and alignment should be checked after installation.
Comparing with Related Products
FMF PowerCore 4 Slip‑On Exhaust
The FMF PowerCore 4 slip‑on is a popular alternative. While both products aim to improve performance, the YOSHIMURA KAWASAKI KX250F 17‑20 RS‑4 SLIP‑ON EXHAUST MUFFLER SS‑AL‑CF” Rear Wheel Rim Hub Tire package goes further by including rear wheel components — offering a more complete enhancement solution.
Pro Circuit T‑6 Slip‑On
Pro Circuit’s T‑6 slip‑on is known for aggressive power tuning. The Pro Circuit option may deliver slightly more top‑end performance, but the YOSHIMURA KAWASAKI KX250F 17‑20 RS‑4 SLIP‑ON EXHAUST MUFFLER SS‑AL‑CF” Rear Wheel Rim Hub Tire benefits riders seeking a balanced power increase and improved traction via its included wheel upgrades.
Stock OEM Exhaust and Wheel
The OEM exhaust and wheel setup on the Kawasaki KX250F offers reliability and longevity. However, riders looking for measurable performance gains will find the YOSHIMURA KAWASAKI KX250F 17‑20 RS‑4 SLIP‑ON EXHAUST MUFFLER SS‑AL‑CF” Rear Wheel Rim Hub Tire to be a significant upgrade in both power and handling.
Pros & Cons – Balanced View
Pros
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Noticeable power and response gains
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Lightweight materials reduce mass
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Included rear wheel components improve traction
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Race‑inspired design and sound
Cons
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Requires mechanical installation
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Higher cost than single‑component upgrades
Final Summary
For riders seeking both power and improved traction on their Kawasaki KX250F from 2017–2020, the YOSHIMURA KAWASAKI KX250F 17‑20 RS‑4 SLIP‑ON EXHAUST MUFFLER SS‑AL‑CF” Rear Wheel Rim Hub Tire delivers a compelling performance package. By combining a high‑quality slip‑on muffler with upgraded rear wheel components, this product enhances acceleration, handling, and overall ride quality for off‑road and motocross enthusiasts.













Logan S. –
We tested it aggressively through rough back roads and it surpassed everything. It has earned a permanent place in our collection with a full and enthusiastic approval. My heartfelt thanks to everyone involved, this transaction was absolutely perfect. It is an absolute pleasure having it here in Finland.
Chloé M. –
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Hannah B. –
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Gabriel R. –
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Daniel W. –
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David W. –
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James S. –
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Sofia W. –
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Lars M. –
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Leon P. –
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Sophia S. –
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Connor M. –
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Julia G. –
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Elizabeth L. –
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Asher G. –
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Pierre B. –
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Harper W. –
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Lukas J. –
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Charlotte R. –
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Paul G. –
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Levi A. –
The YOSHIMURA KAWASAKI KX250F 17-20 RS-4 SLIP-ON EXHAUST MUFFLER SS-AL-CF arrived on time. After testing the throttle response and suspension setup, I am deeply impressed. Exceeded every single expectation I had. The responsiveness and build integrity are worth every single penny.
Eden M. –
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Ivy R. –
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Mathieu M. –
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Camille H. –
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Lina B. –
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Marie S. –
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Mason T. –
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Sophia R. –
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Charlotte S. –
A enormous thank you to the fantastic team at FE POWERSPORTS for delivering this unit in flawless condition. My shipment arrived in immaculate condition here in Mainz, Germany. Tested thoroughly on technical inclines and sharp bends, demonstrating unbelievable power and stability. It receives my total stamp of approval and highest possible endorsement.
Jack B. –
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Amelia J. –
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Jade B. –
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Eden G. –
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Sophia H. –
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Leon H. –
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Leon R. –
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Lily H. –
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Ben K. –
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Lucia D. –
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Florence W. –
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Thomas W. –
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Manon B. –
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Zoe W. –
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Michael S. –
Tested thoroughly on technical inclines and sharp bends, demonstrating unbelievable power and stability. Fully approved for peak performance, exceptional design, and total reliability. Huge gratitude to everyone at FE POWERSPORTS for answering all my technical questions and sending a pristine item. It is performing magnificently here in Karlsruhe, Germany.
Frieda S. –
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Lucas B. –
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Michael W. –
Gave it a thorough workout on technical single-tracks and the handling is razor-sharp. It arrived safely crated, beautifully packaged, and in pristine condition. The pure excitement this brings is hard to put into words. Highly recommend this store.
Alejandro W. –
Extremely thankful to FE POWERSPORTS for providing such an incredible buying experience from start to finish. My order arrived in pristine condition here in Gothenburg, Sweden. After inspecting the setup and putting it through a rigorous test ride, I can verify its high quality. It has officially earned my complete approval and highest praise.
Max W. –
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Natalie A. –
Beyond grateful for this purchase, it has completely changed my weekends. This YOSHIMURA KAWASAKI KX250F 17-20 RS-4 SLIP-ON EXHAUST MUFFLER SS-AL-CF was delivered perfectly to me here in North Dakota. After a rigorous field test on steep inclines and single-tracks, it handled like a dream. Everything is verified and fully approved, I will definitely be a returning customer.
Finn H. –
Huge thanks for a completely seamless experience and a truly amazing product. This YOSHIMURA KAWASAKI KX250F 17-20 RS-4 SLIP-ON EXHAUST MUFFLER SS-AL-CF was delivered perfectly to me here in Denmark. Ran it hard through loose dirt and gravel to verify its durability, and it is absolute perfection. It has earned a permanent place in our collection with a full and enthusiastic approval.
Léna L. –
Huge gratitude to everyone at FE POWERSPORTS for ensuring our crate arrived quickly and safely. My order arrived in pristine condition here in Caen, France. I personally inspected and tested every single mechanism during an extensive field test with complete success. Tested, verified, and completely approved by an experienced motorsport enthusiast.
Liam T. –
Best investment I’ve made in years, hands down. Tested, tuned, and verified—the mechanics and tolerances are top-tier. This YOSHIMURA KAWASAKI KX250F 17-20 RS-4 SLIP-ON EXHAUST MUFFLER SS-AL-CF is outstanding. The responsiveness and build integrity are worth every single penny.
Manon R. –
Deeply appreciative of FE POWERSPORTS for making this entire purchase so pleasant and straightforward. My order arrived in pristine condition here in Antwerp, Belgium. Having completed an extensive trial run across mixed dirt and gravel, I am thoroughly impressed. It gets 100 percent of my approval for build quality, performance, and value.