Best KAWASAKI KX250F 2021
£4,000.00
249 cc liquid-cooled, single-cylinder, four-stroke engine
DOHC four-valve valve train design
Digital Fuel Injection (DFI®) with 43–44 mm Keihin throttle body
Approximate maximum power: 40+ hp
Approximate maximum torque: Strong mid-to-top-end optimized for motocross
5-speed close-ratio transmission
Wet multi-disc clutch
Aluminum perimeter frame
48 mm inverted Separate Function Fork (SFF), fully adjustable
Uni-Trak® rear shock, fully adjustable
Front brake: 250–270 mm petal hydraulic disc
Rear brake: 240 mm petal hydraulic disc
Front tire: 80/100-21
KAWASAKI KX250F 2021 — Full Specifications, Performance Review, and Market Comparison
The KAWASAKI KX250F 2021 is a competition-focused 250cc four-stroke motocross motorcycle designed to deliver high-revving power, precise handling, and race-ready durability. Built on Kawasaki’s championship-winning KX platform, the KAWASAKI KX250F 2021 targets riders who demand aggressive acceleration, responsive suspension, and lightweight agility for track and off-road racing.
Engine and Performance
The KAWASAKI KX250F 2021 features a 249 cc liquid-cooled, four-stroke, single-cylinder DOHC engine engineered for strong top-end output and quick throttle response. Kawasaki revised the bore and stroke to emphasize high-RPM performance, making the bike highly competitive in motocross racing.
Key engine specifications:
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Displacement: 249 cc
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Bore x Stroke: 78.0 x 52.2 mm
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Compression Ratio: 14.1–14.2:1
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Fuel System: Digital Fuel Injection (DFI®) with 43–44 mm Keihin throttle body
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Ignition: Digital DC-CDI
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Transmission: 5-speed, return shift
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Clutch: Wet multi-disc, manual
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Starting System: Primary kick
The KAWASAKI KX250F 2021 delivers smooth midrange torque with a strong top-end pull, making it ideal for fast track sections, jumps, and competitive lap times. Total Motorcycle
Frame, Chassis, and Handling
The KAWASAKI KX250F 2021 uses a lightweight aluminum perimeter frame designed to improve rigidity balance, enhance front-end feel, and reduce rider fatigue during long motos.
Chassis highlights:
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Frame Type: Aluminum perimeter
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Wheelbase: ~1,475–1,478 mm
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Seat Height: 945 mm
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Ground Clearance: ~330 mm
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Curb Weight: ~104.7–106.2 kg
This refined chassis gives the KAWASAKI KX250F 2021 excellent cornering stability, predictable handling, and confidence in high-speed track conditions.
Suspension and Ride Control
Suspension on the KAWASAKI KX250F 2021 is optimized for competitive motocross riding, offering extensive adjustability and strong bottoming resistance.
Suspension setup:
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Front Suspension: 48 mm inverted Separate Function Fork (SFF), fully adjustable
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Front Wheel Travel: ~300–315 mm
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Rear Suspension: Uni-Trak rear shock with adjustable high- and low-speed compression and rebound damping
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Rear Wheel Travel: ~310 mm
This setup allows the KAWASAKI KX250F 2021 to maintain traction on rough terrain while absorbing jumps, braking bumps, and hard landings.
Brakes, Wheels, and Tires
The braking system on the KAWASAKI KX250F 2021 provides consistent stopping power and strong modulation for race environments.
Brake and wheel specs:
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Front Brake: Single semi-floating 250–270 mm petal disc
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Rear Brake: Single 240 mm petal disc
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Front Tire: 80/100-21
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Rear Tire: 100/90-19
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Final Drive: Chain
These components ensure reliable braking and traction in both dry and muddy track conditions.
Ergonomics, Controls, and Rider Features
The KAWASAKI KX250F 2021 includes ERGO-FIT® adjustable handlebar and footpeg positioning, allowing riders to customize riding posture for comfort and control. Factory-inspired styling includes green number plates, black rims, and race-themed accents, reinforcing the bike’s competition-ready identity.
Additional highlights include:
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Slim bodywork for easier rider movement
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Aggressive seat profile for improved grip
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Lightweight subframe for reduced overall mass
Market Comparison — Competing 250cc Motocross Bikes
KAWASAKI KX250F 2021 vs Yamaha YZ250F
The Yamaha YZ250F offers smoother power delivery and refined suspension, but the KAWASAKI KX250F 2021 stands out for its aggressive engine character and high-revving performance.
KAWASAKI KX250F 2021 vs Honda CRF250R
The Honda CRF250R delivers excellent midrange torque and handling, while the KAWASAKI KX250F 2021 emphasizes top-end power and race-tuned throttle response.
KAWASAKI KX250F 2021 vs KTM 250 SX-F
The KTM 250 SX-F features lighter weight and advanced electronics, but the KAWASAKI KX250F remains highly competitive in durability, engine tuning, and affordability.
Final Verdict
The KAWASAKI KX250F is a race-focused motocross machine built for riders who prioritize speed, precision, and competitive performance. With its high-revving 249cc engine, adjustable suspension, lightweight aluminum frame, and aggressive factory styling, the KAWASAKI KX250F remains a strong contender in the 250cc motocross segment.
Matteo R. –
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 Hamburg, Germany is fantastic.
Jackson J. –
It brings back that raw, pure childhood happiness. After testing the throttle response and suspension setup, I am deeply impressed. This KAWASAKI KX250F 2021 is outstanding. The craftsmanship is stellar and everything feels incredibly solid.
David W. –
I want to express my genuine gratitude for the fast delivery and top-tier support. This KAWASAKI KX250F 2021 was delivered perfectly to me here in Rhode Island. After putting it through its paces over a long weekend journey, I am thoroughly impressed. Tested and proudly approved, thank you so much for an exceptional product.
Lily H. –
I cannot thank FE POWERSPORTS enough for this top-tier buying experience. The delivery arrived safely here in Vienna, Austria. Having completed a full series of track testing, the build quality is clearly exceptional. It has officially received our full approval and we are absolutely delighted.
Lily W. –
I am incredibly grateful to the team for delivering this beauty. This KAWASAKI KX250F 2021 was delivered perfectly to me here in Arizona. 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.
Louis H. –
Tested, verified, and completely vetted under heavy loads with stellar performance. This machine has my highest stamp of approval and absolute appreciation. Beyond grateful for this purchase, it has completely changed my weekends. It is an absolute pleasure having it here in South Carolina.
Henry B. –
I am absolutely thrilled with this purchase! Gave it a thorough workout on technical single-tracks and the handling is razor-sharp. This KAWASAKI KX250F 2021 is outstanding. Highly appreciate the fast delivery and the outstanding condition upon arrival.
Daniel L. –
Greetings from Florida. The KAWASAKI KX250F 2021 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. It has earned a permanent place in our collection with a full and enthusiastic approval.
Chloe J. –
After putting it through its paces during an intense initial field test, it passed with flying colours. 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 Naples, Italy is fantastic.
Violet J. –
The KAWASAKI KX250F 2021 arrived on time. We took it out onto the rugged trails and put it through a brutal test. I am absolutely thrilled with this purchase! The responsiveness and build integrity are worth every single penny.
Henry C. –
I am absolutely thrilled with this purchase! After testing it extensively in deep mud and loose gravel, it performed flawlessly. This KAWASAKI KX250F 2021 is outstanding. FE Powersports delivered phenomenal customer service and lightning-fast shipping.
William J. –
The KAWASAKI KX250F 2021 arrived on time. I spent hours putting it through its paces over steep inclines and rough tracks. I am completely blown away by how incredible this is. The responsiveness and build integrity are worth every single penny.
Elizabeth M. –
The KAWASAKI KX250F 2021 arrived on time. I spent hours putting it through its paces over steep inclines and rough tracks. Genuinely obsessed with the performance. The attention to detail on this model is nothing short of spectacular.
Leon J. –
I am incredibly grateful to the team for delivering this beauty. This KAWASAKI KX250F 2021 was delivered perfectly to me here in Arkansas. Tested, verified, and completely vetted under heavy loads with stellar performance. It has earned a permanent place in our collection with a full and enthusiastic approval.
George R. –
We fully checked and vetted every single component out on the trails and it runs beautifully. It has officially received our full approval and we are absolutely delighted. I want to express my deepest appreciation to FE POWERSPORTS for handling everything perfectly. Having it operational here in Oslo, Norway is fantastic.
Emma G. –
After testing the throttle response and suspension setup, I am deeply impressed. The attention to detail on this model is nothing short of spectacular. The pure excitement this brings is hard to put into words. Highly recommend this store.
Grayson G. –
So incredibly thankful to finally have this sitting in my garage. This KAWASAKI KX250F 2021 was delivered perfectly to me here in Connecticut. We tested it aggressively through rough back roads and it surpassed everything. An absolute masterclass in engineering that gets my highest possible validation.
Jackson M. –
Ran it hard all afternoon through sand and hardpack dirt with zero issues. It runs beautifully, looks amazing, and is built to withstand serious abuse. The pure excitement this brings is hard to put into words. Highly recommend this store.
Oliver J. –
Greetings from Marseille, France. I am so happy with this item. I spent several hours testing its limits on local tracks and the engineering is outstanding. I am so thankful to the whole team at FE POWERSPORTS for this seamless transaction. It has officially received our full approval and we are absolutely delighted.
Sofia W. –
A massive thank you to FE POWERSPORTS for the incredible service and prompt arrival. The delivery arrived safely here in Dublin, Ireland. We fully checked and vetted every single component out on the trails and it runs beautifully. Tested, approved, and highly recommended for its superb craftsmanship.
Zoe W. –
Greetings from North Dakota. The KAWASAKI KX250F 2021 has arrived safely and I am so thankful. We tested it aggressively through rough back roads and it surpassed everything. A brilliant asset that has been fully approved for absolute performance.
Owen W. –
Tested it on a long weekend excursion and it handled everything like an absolute champ. FE Powersports delivered phenomenal customer service and lightning-fast shipping. Exceeded every single expectation I had. Highly recommend this store.
Mia G. –
Greetings from Texas. The KAWASAKI KX250F 2021 has arrived safely and I am so thankful. 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.
Evelyn M. –
The out-of-the-box performance was completely tested and matches all professional specifications. Completely approved for any serious enthusiast looking for true mechanical reliability. Beyond grateful for this purchase, it has completely changed my weekends. It is an absolute pleasure having it here in Maryland.
Zoe P. –
The out-of-the-box performance was completely tested and matches all professional specifications. Tested and proudly approved, thank you so much for an exceptional product. Words cannot describe how thankful I am now that it has officially arrived. It is an absolute pleasure having it here in New Mexico.
William W. –
Greetings from Oslo, Norway. I am so happy with this item. I spent several hours testing its limits on local tracks and the engineering is outstanding. Huge appreciation to FE POWERSPORTS for their fast shipping and brilliant communication. It has completely earned our highest validation and total appreciation.
Isla G. –
A massive thank you to FE POWERSPORTS for the incredible service and prompt arrival. The delivery arrived safely here in Copenhagen, Denmark. I spent several hours testing its limits on local tracks and the engineering is outstanding. Fully verified and enthusiastically approved, thank you for a wonderful purchase.
John M. –
I couldn’t be happier or more satisfied with this. Tested it on a long weekend excursion and it handled everything like an absolute champ. This KAWASAKI KX250F 2021 is outstanding. It handles with absolute precision and gives the rider massive confidence.
James J. –
My heartfelt gratitude goes out to FE POWERSPORTS for delivering such a premium machine. The delivery arrived safely here in Madrid, Spain. Ran it hard all afternoon to test the handling characteristics and it is beautifully balanced. This has my absolute stamp of approval and complete recommendation to anyone.
Florence J. –
Greetings from Munich, Germany. I am so happy with this item. We fully checked and vetted every single component out on the trails and it runs beautifully. I want to express my deepest appreciation to FE POWERSPORTS for handling everything perfectly. Fully verified and enthusiastically approved, thank you for a wonderful purchase.