2020 Kawasaki KX450F KX450 Subframe 2016-2018 Rear Frame 2017-2020 KX250F KX250
£150.00
High-strength aluminum alloy construction
Direct OEM fit replacement
Compatible with 2020 KX450F, 2016–2018 KX450, 2017–2020 KX250F, KX250
Restores factory chassis geometry
Bolt-on installation, no modifications required
Supports seat and rear bodywork
Lightweight yet durable for aggressive riding
Corrosion-resistant black finish
Enhances handling and stability
Maintains proper suspension alignment
Ideal for motocross and off-road use
OEM-quality manufacturing standards
2020 Kawasaki KX450F KX450 Subframe 2016‑2018 Rear Frame 2017‑2020 KX250F KX250 – Full Product Guide
The 2020 Kawasaki KX450F KX450 Subframe 2016‑2018 Rear Frame 2017‑2020 KX250F KX250 is a direct‑fit OEM‑quality rear subframe manufactured specifically for select Kawasaki motocross models. Designed to replace worn, damaged, or cracked factory frames, this subframe restores structural integrity, rider confidence, and factory geometry. Whether you’re rebuilding a race bike or upgrading a practice machine, this replacement subframe delivers reliable performance for aggressive off‑road riding.
Product Overview – What Is the 2020 Kawasaki KX450F KX450 Subframe 2016‑2018 Rear Frame 2017‑2020 KX250F KX250?
The 2020 Kawasaki KX450F KX450 Subframe 2016‑2018 Rear Frame 2017‑2020 KX250F KX250 is a high‑quality rear frame manufactured to meet Kawasaki’s original specifications. It replaces the rear portion of the motorcycle chassis that supports the seat, bodywork, and rear body loads. Built to exact tolerances, this subframe is engineered to restore correct alignment and strength after wear or crash damage.
This rear subframe fits the 2020 KX450F model as well as earlier KX450 units from 2016–2018. It also fits the 2017–2020 KX250F and KX250 models, making it a versatile part for multiple motocross bikes in the Kawasaki lineup.
Key Features & Specifications
OEM Fit and Finish
The 2020 Kawasaki KX450F KX450 Subframe 2016‑2018 Rear Frame 2017‑2020 KX250F KX250 is manufactured to the same dimensions and quality standards as the original equipment subframe. This ensures:
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Direct bolt‑on replacement
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Factory‑correct mounting points
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Consistent fit with stock bodywork and seat
Durable Construction
Made from high‑strength, lightweight aluminum alloy, this rear frame section resists corrosion and impact while keeping overall bike weight low. Riders appreciate the balance of rigidity and toughness, especially in high‑stress zones.
Restores Structural Integrity
A worn or cracked frame can affect handling and performance. Installing the 2020 Kawasaki KX450F KX450 Subframe 2016‑2018 Rear Frame 2017‑2020 KX250F KX250 restores original chassis geometry and handling precision for both track racing and trail riding.
Wide Model Compatibility
This subframe fits multiple popular Kawasaki models:
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2020 KX450F
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2016–2018 KX450
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2017–2020 KX250F
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2017–2020 KX250
This broad compatibility makes the 2020 Kawasaki KX450F KX450 Subframe 2016‑2018 Rear Frame 2017‑2020 KX250F KX250 a practical replacement option for riders owning multiple bikes.
Installation & Fitment
Installing the 2020 Kawasaki KX450F KX450 Subframe 2016‑2018 Rear Frame 2017‑2020 KX250F KX250 requires basic tools and mechanical skills. The steps involve:
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Removing the seat and plastics – to access subframe mounting points
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Unbolting stock subframe – retain hardware if reusable
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Positioning the replacement subframe – align with factory holes
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Tightening fasteners to torque specs – ensure correct clamping force
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Reinstalling bodywork – check alignment and fit
Because it is OEM‑spec, no modifications are normally required. Riders should always use correct torque values and verify cables and body panels are free from binding after installation.
Benefits for Riders
Improved Handling and Stability
Replacing a damaged rear frame with the 2020 Kawasaki KX450F KX450 Subframe 2016‑2018 Rear Frame 2017‑2020 KX250F KX250 returns the motorcycle to its designed structural stiffness. This improves handling response, especially in jumps, whoops, and hard cornering.
Restored Ride Geometry
Accurate frame alignment ensures correct suspension behavior and balance, which is critical in motocross racing. Riders often notice improved traction and confidence after refurbishing the subframe.
Cost‑Effective Maintenance
Instead of buying a new chassis or secondhand frame, the 2020 Kawasaki KX450F KX450 Subframe 2016‑2018 Rear Frame 2017‑2020 KX250F KX250 offers a cost‑effective OEM replacement that extends the life of your bike.
Comparing with Related Parts
Aftermarket Aluminum Subframes
Aftermarket subframes may focus on lighter weight or customized bend profiles. However, the 2020 Kawasaki KX450F KX450 Subframe 2016‑2018 Rear Frame 2017‑2020 KX250F KX250 retains factory geometry and strength. While aftermarket options might shave weight, they can compromise durability under heavy racing conditions.
Used OEM Frames
Used OEM frames are often cheaper, but they may have hidden stress cracks or welding repairs. With the 2020 Kawasaki KX450F KX450 Subframe 2016‑2018 Rear Frame 2017‑2020 KX250F KX250, you get a new subframe with full structural integrity and no hidden wear.
Full Frame Replacements
Replacing the entire frame is more expensive and usually only necessary after severe damage. The 2020 Kawasaki KX450F KX450 Subframe 2016‑2018 Rear Frame 2017‑2020 KX250F KX250 allows focused repair at a fraction of the cost while restoring performance.
Why Riders Choose This Subframe
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OEM construction with correct fit
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Durable aluminum alloy material
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Restores proper handling and geometry
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Easy bolt‑on installation
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Compatible with multiple Kawasaki models
Whether you race competitively or ride aggressively in the woods, the 2020 Kawasaki KX450F KX450 Subframe 2016‑2018 Rear Frame 2017‑2020 KX250F KX250 is a reliable replacement part that maintains factory performance.
Final Thoughts
In the replacement parts market, few options offer the balance of fit, value, and durability of the 2020 Kawasaki KX450F KX450 Subframe 2016‑2018 Rear Frame 2017‑2020 KX250F KX250. For riders restoring their Kawasaki motocross bikes to top condition, this rear frame subframe section delivers peace of mind and consistent performance on every ride.
David M. –
Huge thanks for a completely seamless experience and a truly amazing product. This 2020 Kawasaki KX450F KX450 Subframe 2016-2018 Rear Frame 2017-2020 KX250F KX250 was delivered perfectly to me here in Louisiana. Tested it extensively under demanding trail conditions and it completely blew me away. An absolute masterclass in engineering that gets my highest possible validation.
Sophia M. –
The 2020 Kawasaki KX450F KX450 Subframe 2016-2018 Rear Frame 2017-2020 KX250F KX250 arrived on time. Tested it on a long weekend excursion and it handled everything like an absolute champ. The pure excitement this brings is hard to put into words. The responsiveness and build integrity are worth every single penny.
Hannah M. –
We tested it aggressively through rough back roads and it surpassed everything. It is fully vetted, approved, and deeply treasured by our family. Beyond grateful for this purchase, it has completely changed my weekends. It is an absolute pleasure having it here in Idaho.
Evelyn T. –
Ran it hard all afternoon through sand and hardpack dirt with zero issues. You can instantly feel the premium quality of the components used. Exceeded every single expectation I had. Highly recommend this store.
Sophia M. –
Greetings from Switzerland. The 2020 Kawasaki KX450F KX450 Subframe 2016-2018 Rear Frame 2017-2020 KX250F KX250 has arrived safely and I am so thankful. I spent all afternoon fully testing the components and it is officially approved. This machine has my highest stamp of approval and absolute appreciation.
Matteo C. –
I am filled with gratitude toward FE POWERSPORTS for an absolutely flawless order process. The delivery arrived safely here in Madrid, Spain. Ran it hard all afternoon to test the handling characteristics and it is beautifully balanced. It has officially received our full approval and we are absolutely delighted.
Lucas T. –
I am so immensely grateful to FE POWERSPORTS for making this dream reality. The delivery arrived safely here in Valencia, Spain. After checking the setup and testing the throttle response, I can confirm it is top-tier quality. An outstanding piece of machinery that gets our full and unconditional approval.
Wyatt M. –
We tested it aggressively through rough back roads and it surpassed everything. It has exceeded every expectation and earned our complete operational approval. Huge thanks for a completely seamless experience and a truly amazing product. It is an absolute pleasure having it here in Wisconsin.
Victoria T. –
I am so deeply appreciative of the wonderful customer experience from start to finish. This 2020 Kawasaki KX450F KX450 Subframe 2016-2018 Rear Frame 2017-2020 KX250F KX250 was delivered perfectly to me here in Sweden. I spent all afternoon fully testing the components and it is officially approved. Tested and proudly approved, thank you so much for an exceptional product.
Emma S. –
Greetings from Copenhagen, Denmark. I am so happy with this item. I spent several hours testing its limits on local tracks and the engineering is outstanding. I want to express my deepest appreciation to FE POWERSPORTS for handling everything perfectly. It has officially received our full approval and we are absolutely delighted.
Hannah W. –
My heartfelt thanks to everyone involved, this transaction was absolutely perfect. This 2020 Kawasaki KX450F KX450 Subframe 2016-2018 Rear Frame 2017-2020 KX250F KX250 was delivered perfectly to me here in Nevada. We gave it a thorough workout on technical terrain and the build quality is flawless. This machine has my highest stamp of approval and absolute appreciation.
Oscar W. –
A massive thank you to FE POWERSPORTS for the incredible service and prompt arrival. The delivery arrived safely here in Dublin, Ireland. Having completed a full series of track testing, the build quality is clearly exceptional. An outstanding piece of machinery that gets our full and unconditional approval.
Chloe R. –
Greetings from Milan, Italy. I am so happy with this item. Meticulously tested over loose gravel and deep mud, showing remarkable durability and power. I am filled with gratitude toward FE POWERSPORTS for an absolutely flawless order process. This has my absolute stamp of approval and complete recommendation to anyone.
Jackson M. –
Greetings from South Dakota. The 2020 Kawasaki KX450F KX450 Subframe 2016-2018 Rear Frame 2017-2020 KX250F KX250 has arrived safely and I am so thankful. Ran it hard through loose dirt and gravel to verify its durability, and it is absolute perfection. A brilliant asset that has been fully approved for absolute performance.
Hazel J. –
Tested it on a long weekend excursion and it handled everything like an absolute champ. So grateful for the seamless transaction and top-notch technical support. I couldn’t be happier or more satisfied with this. Highly recommend this store.
Henry A. –
I couldn’t be happier or more satisfied with this. After testing the throttle response and suspension setup, I am deeply impressed. This 2020 Kawasaki KX450F KX450 Subframe 2016-2018 Rear Frame 2017-2020 KX250F KX250 is outstanding. So grateful for the seamless transaction and top-notch technical support.
Luca T. –
The 2020 Kawasaki KX450F KX450 Subframe 2016-2018 Rear Frame 2017-2020 KX250F KX250 arrived on time. We took it out onto the rugged trails and put it through a brutal test. Exceeded every single expectation I had. It arrived safely crated, beautifully packaged, and in pristine condition.
Luca W. –
I am absolutely thrilled with this purchase! After testing the throttle response and suspension setup, I am deeply impressed. This 2020 Kawasaki KX450F KX450 Subframe 2016-2018 Rear Frame 2017-2020 KX250F KX250 is outstanding. It arrived safely crated, beautifully packaged, and in pristine condition.
James S. –
Greetings from Barcelona, Spain. I am so happy with this item. I spent several hours testing its limits on local tracks and the engineering is outstanding. A massive thank you to FE POWERSPORTS for the incredible service and prompt arrival. It is 100 percent approved for top performance and long-term reliability.
Oliver J. –
Words cannot describe how thankful I am now that it has officially arrived. This 2020 Kawasaki KX450F KX450 Subframe 2016-2018 Rear Frame 2017-2020 KX250F KX250 was delivered perfectly to me here in Oklahoma. Ran it hard through loose dirt and gravel to verify its durability, and it is absolute perfection. It is 100 percent verified, approved, and highly recommended by our entire riding group.
Grayson H. –
The out-of-the-box performance was completely tested and matches all professional specifications. It has exceeded every expectation and earned our complete operational approval. Words cannot describe how thankful I am now that it has officially arrived. It is an absolute pleasure having it here in Washington.
Isabella W. –
Greetings from Maryland. The 2020 Kawasaki KX450F KX450 Subframe 2016-2018 Rear Frame 2017-2020 KX250F KX250 has arrived safely and I am so thankful. Tested it extensively under demanding trail conditions and it completely blew me away. Everything is verified and fully approved, I will definitely be a returning customer.
Noah T. –
Best investment I’ve made in years, hands down. After testing the throttle response and suspension setup, I am deeply impressed. This 2020 Kawasaki KX450F KX450 Subframe 2016-2018 Rear Frame 2017-2020 KX250F KX250 is outstanding. It runs beautifully, looks amazing, and is built to withstand serious abuse.
Benjamin J. –
The pure excitement this brings is hard to put into words. We took it out onto the rugged trails and put it through a brutal test. This 2020 Kawasaki KX450F KX450 Subframe 2016-2018 Rear Frame 2017-2020 KX250F KX250 is outstanding. The responsiveness and build integrity are worth every single penny.
Florence T. –
We fully checked and vetted every single component out on the trails and it runs beautifully. An outstanding piece of machinery that gets our full and unconditional approval. Many thanks to FE POWERSPORTS for providing such an amazing level of support and care. Having it operational here in Lisbon, Portugal is fantastic.
Muhammad W. –
Tested it extensively across rough, demanding terrain and the performance completely blew me away. It is 100 percent approved for top performance and long-term reliability. Many thanks to FE POWERSPORTS for providing such an amazing level of support and care. Having it operational here in Porto, Portugal is fantastic.
Aiden C. –
The 2020 Kawasaki KX450F KX450 Subframe 2016-2018 Rear Frame 2017-2020 KX250F KX250 arrived on time. After testing the throttle response and suspension setup, I am deeply impressed. Exceeded every single expectation I had. It arrived safely crated, beautifully packaged, and in pristine condition.
Theodore L. –
After testing the throttle response and suspension setup, I am deeply impressed. Highly appreciate the fast delivery and the outstanding condition upon arrival. Exceeded every single expectation I had. Highly recommend this store.
Louis J. –
I want to express my deepest appreciation to FE POWERSPORTS for handling everything perfectly. The delivery arrived safely here in Porto, Portugal. Ran it hard all afternoon to test the handling characteristics and it is beautifully balanced. Tested, approved, and highly recommended for its superb craftsmanship.
Freya D. –
Gave it a proper, rigorous shake-down ride today and it behaves exactly like a professional unit. Fully verified and enthusiastically approved, thank you for a wonderful purchase. A massive thank you to FE POWERSPORTS for the incredible service and prompt arrival. Having it operational here in Copenhagen, Denmark is fantastic.