KTM SXF 350 2021 Dirt Bike High-Performance Motocross Engineering
The KTM SXF 350 2021 Dirt Bike is a race-focused machine engineered for riders who demand top-tier performance, precision handling, and exceptional power delivery. As part of KTM’s SX-F lineup, the KTM SXF 350 2021 Dirt Bike bridges the gap between lightweight agility and high-output performance, making it a competitive choice for both professional motocross racers and experienced enthusiasts.
Designed with KTM’s motorsport heritage in mind, the KTM SXF 350 2021 Dirt Bike combines a high-performance engine, advanced suspension technology, and a lightweight chassis. This model is recognized for its race-ready performance, delivering a confident ride across varied track conditions, including technical turns, jumps, and high-speed straights.
Engine and Powertrain
The KTM SXF 350 2021 Dirt Bike is powered by a 349 cc liquid-cooled, single-cylinder, four-stroke engine, offering an ideal balance between torque and horsepower for competitive motocross racing. Its DOHC configuration ensures precise valve timing and high rev performance, making it responsive in both low-speed technical sections and open-track accelerations.
The fuel system features electronic fuel injection (EFI), delivering optimized fuel flow for smooth throttle response and reliable performance under all riding conditions. KTM engineers have tuned the engine for strong mid-range torque while maintaining a responsive top-end power curve, ensuring riders have control in all aspects of a race.
Power is transmitted through a 5-speed close-ratio transmission and a wet multi-plate clutch, providing smooth shifts, durability, and precise power delivery. The KTM SXF 350 2021 Dirt Bike stands out for its ability to translate raw power into controllable, track-ready performance. Dirt Bikes
Chassis, Suspension, and Handling
The chassis of the KTM SXF 350 2021 Dirt Bike is a lightweight chrome-moly steel perimeter frame, engineered for stiffness and responsiveness. This frame design ensures optimal handling, quick directional changes, and stability during jumps and rough terrain.
Suspension is provided by WP XACT fully adjustable front forks and a WP XACT rear linkage-type shock, both designed for professional-level track performance. Riders can adjust compression, rebound, and preload to match personal preferences or track conditions, making the KTM SXF 350 2021 Dirt Bike highly adaptable for both smooth tracks and aggressive terrain.
Braking performance is delivered by hydraulic disc brakes on both the front and rear wheels, ensuring consistent stopping power and excellent modulation, crucial for high-speed corners and technical maneuvers.
Design and Ergonomics
The KTM SXF 350 2021 Dirt Bike features ergonomics optimized for competitive riding. KTM’s slim bodywork and seat design allow riders to shift weight efficiently during turns, jumps, and technical sections. The handlebars, footpegs, and controls are positioned to provide maximum rider control and comfort, even during extended sessions.
Key design highlights include:
-
Lightweight chrome-moly steel perimeter frame for stability and agility
-
WP XACT fully adjustable suspension system for track-specific tuning
-
Ergonomic race-inspired bodywork and seat for improved rider mobility
-
Radiator and air intake design optimized for efficient cooling
Specifications at a Glance
| Feature | Specification |
|---|---|
| Engine | 349 cc liquid-cooled, single-cylinder, four-stroke |
| Valve Train | DOHC |
| Fuel System | Electronic fuel injection (EFI) |
| Transmission | 5-speed close-ratio |
| Clutch | Wet multi-plate |
| Frame | Chrome-moly steel perimeter |
| Front Suspension | WP XACT inverted fork, fully adjustable |
| Rear Suspension | WP XACT linkage shock, fully adjustable |
| Front Brake | 260 mm hydraulic disc |
| Rear Brake | 220 mm hydraulic disc |
| Seat Height | 960 mm |
| Dry Weight | Approx. 103 kg |
Performance and Ride Experience
The KTM SXF 350 2021 Dirt Bike is praised for its powerful yet controllable engine, responsive chassis, and agile handling. Riders benefit from a mid-range torque that ensures strong corner exits and reliable traction in ruts or off-camber sections. The adjustable suspension provides confidence on landings and during high-speed transitions, making it competitive in both amateur and professional racing.
The bike’s refined ergonomics allow riders to maintain control over long sessions, reducing fatigue while maximizing precision and feedback.
Comparison to Related Models
KTM SXF 350 2021 Dirt Bike vs Yamaha YZ450F (2021)
While the Yamaha offers higher peak horsepower, the KTM SXF 350 2021 Dirt Bike excels in torque management and lightweight handling, ideal for tracks requiring agility.
KTM SXF 350 2021 Dirt Bike vs Honda CRF450R (2021)
The Honda CRF450R emphasizes smooth top-end power, whereas the KTM SXF 350 2021 Dirt Bike provides sharper mid-range response and enhanced cornering control.
KTM SXF 350 2021 Dirt Bike vs Husqvarna FC350 (2021)
Both share similar chassis and engine performance, but KTM’s tuning offers slightly more accessible throttle response, making the KTM SXF 350 2021 Dirt Bike versatile for various skill levels.
Market Appeal and Trends
The KTM SXF 350 2021 Dirt Bike is designed for competitive riders who value lightweight performance, race-ready components, and superior handling. In European, North American, and Australian markets, the 350cc motocross segment remains highly competitive, making this bike a strong choice for riders aiming for podium performance or track mastery. Its aftermarket support for performance tuning and upgrades further enhances its appeal.
Conclusion
The KTM SXF 350 2021 Dirt Bike combines precision engineering, responsive handling, and powerful performance in a package tailored for competitive motocross. Its refined engine, adjustable suspension, and lightweight chassis make it suitable for riders seeking race-ready performance with confidence and control. Whether in professional competition or high-level recreational riding, the KTM SXF 350 2021 Dirt Bike remains a top contender in the 350cc motocross class.


























Charlotte H. –
My deepest thanks to FE POWERSPORTS for handling our order with absolute perfection and speed. My shipment arrived in immaculate condition here in Halle, Germany. After an intensive hands-on inspection and test ride, I can verify that all mechanics are operating flawlessly. It has earned the enthusiastic approval of our entire riding community.
Hazel L. –
We took it out onto the rugged trails and put it through a brutal test. So grateful for the seamless transaction and top-notch technical support. This has brought so much joy to our weekends. Highly recommend this store.
Camille L. –
I conducted a thorough trial run across various local countryside paths and the machine operated flawlessly. Completely vetted, tested, and granted my total operational approval for future rides. Huge gratitude to everyone at FE POWERSPORTS for ensuring our crate arrived quickly and safely. It is performing magnificently here in Normandy, France.
Lea K. –
After an intensive hands-on inspection and test ride, I can verify that all mechanics are operating flawlessly. Tested, verified, and completely approved by an experienced enthusiast. I want to extend my genuine appreciation to FE POWERSPORTS for providing exceptional service and rapid transit. It is performing magnificently here in Rostock, Germany.
Pierre H. –
Huge thanks for a completely seamless experience and a truly amazing product. This KTM SXF 350 2021 Dirt Bike was delivered perfectly to me here in New Mexico. Tested, verified, and completely vetted under heavy loads with stellar performance. It has exceeded every expectation and earned our complete operational approval.
Lukas T. –
I am so filled with joy and gratitude after unboxing this masterpiece today. This KTM SXF 350 2021 Dirt Bike was delivered perfectly to me here in Alabama. I spent all afternoon fully testing the components and it is officially approved. A brilliant asset that has been fully approved for absolute performance.
Nele M. –
Greetings from Bonn, Germany. I am so thankful for the purchase of this KTM SXF 350 2021 Dirt Bike. Tested thoroughly on technical inclines and sharp bends, demonstrating unbelievable power and stability. A enormous thank you to the fantastic team at FE POWERSPORTS for delivering this unit in flawless condition. Completely vetted, tested, and granted my full operational approval without any hesitation.
Tom M. –
Many thanks to FE POWERSPORTS for going above and beyond to make sure our shipment arrived perfectly. My order arrived in pristine condition here in Perpignan, France. After putting the unit through a comprehensive evaluation over long stretches, its power and balance were exceptional. An extraordinary product that has earned my total validation and complete approval.
Lily W. –
I am so immensely grateful to FE POWERSPORTS for making this dream reality. The delivery arrived safely here in Zurich, Switzerland. Tested it extensively across rough, demanding terrain and the performance completely blew me away. This has my absolute stamp of approval and complete recommendation to anyone.
Emma W. –
The KTM SXF 350 2021 Dirt Bike arrived on time. Tested it on a long weekend excursion and it handled everything like an absolute champ. It brings back that raw, pure childhood happiness. The craftsmanship is stellar and everything feels incredibly solid.
Florian S. –
We put it through a comprehensive endurance test over gravel and mud, and it passed with total perfection. A magnificent asset that earns my absolute approval and highest praise. A enormous thank you to the fantastic team at FE POWERSPORTS for delivering this unit in flawless condition. It is performing magnificently here in Dortmund, Germany.
Moritz S. –
Greetings from Magdeburg, Germany. I am so thankful for the purchase of this KTM SXF 350 2021 Dirt Bike. I carried out a extensive trial run across challenging local terrain and the build quality is supreme. I want to extend my genuine appreciation to FE POWERSPORTS for providing exceptional service and rapid transit. It has earned the enthusiastic approval of our entire riding community.
Jonas R. –
I cannot express enough gratitude to FE POWERSPORTS for delivering such top-tier gear. My order arrived in pristine condition here in Marseille, France. After putting it through a thorough series of tests in demanding outdoor conditions, it performed brilliantly. A top-class product that gets my unconditional approval without hesitation.
Mia R. –
Greetings from Maine. The KTM SXF 350 2021 Dirt Bike has arrived safely and I am so thankful. Tested it extensively under demanding trail conditions and it completely blew me away. Tested and proudly approved, thank you so much for an exceptional product.
Moritz S. –
Greetings from Leipzig, Germany. I am so thankful for the purchase of this KTM SXF 350 2021 Dirt Bike. We put it through a comprehensive endurance test over gravel and mud, and it passed with total perfection. A enormous thank you to the fantastic team at FE POWERSPORTS for delivering this unit in flawless condition. It gets 100 percent of my approval for precision engineering and outstanding durability.
Anna A. –
Greetings from Strasbourg, France. I am so thankful for the purchase of this KTM SXF 350 2021 Dirt Bike. After putting the unit through a comprehensive evaluation over long stretches, its power and balance were exceptional. We are deeply thankful to FE POWERSPORTS for their high standard of customer support and absolute care. Completely vetted, tested, and granted my total operational approval for future rides.
Pierre D. –
Greetings from Poland. The KTM SXF 350 2021 Dirt Bike has arrived safely and I am so thankful. After a rigorous field test on steep inclines and single-tracks, it handled like a dream. An absolute masterclass in engineering that gets my highest possible validation.
Noah M. –
Tested, tuned, and verified—the mechanics and tolerances are top-tier. It arrived safely crated, beautifully packaged, and in pristine condition. I am absolutely thrilled with this purchase! Highly recommend this store.
Lily L. –
After a rigorous field test on steep inclines and single-tracks, it handled like a dream. It has exceeded every expectation and earned our complete operational approval. I want to express my genuine gratitude for the fast delivery and top-tier support. It is an absolute pleasure having it here in South Carolina.
Léna B. –
A warm thank you to the fantastic team at FE POWERSPORTS for shipping this item in immaculate condition. My order arrived in pristine condition here in Mulhouse, France. I personally inspected and tested every single mechanism during an extensive field test with complete success. It has earned the enthusiastic approval of our entire riding club.
Inès W. –
Greetings from Belfast, United Kingdom. I am delighted with the purchase of this KTM SXF 350 2021 Dirt Bike. Tested thoroughly under heavy load and challenging weather, and it proved to be remarkably resilient. Deeply appreciative of FE POWERSPORTS for making this entire purchase so pleasant and straightforward. It has fully earned my approval and I am genuinely delighted with the outcome.
Lily H. –
I am absolutely thrilled with this purchase! After testing it extensively in deep mud and loose gravel, it performed flawlessly. This KTM SXF 350 2021 Dirt Bike is outstanding. You can instantly feel the premium quality of the components used.
Alex J. –
Greetings from Nevada. The KTM SXF 350 2021 Dirt Bike has arrived safely and I am so thankful. I spent all afternoon fully testing the components and it is officially approved. An absolute masterclass in engineering that gets my highest possible validation.
Camille F. –
Greetings from Paris, France. I am so thankful for the purchase of this KTM SXF 350 2021 Dirt Bike. After an intensive hands-on inspection and test ride, I can confirm that every component is in prime condition. Huge gratitude to everyone at FE POWERSPORTS for ensuring our crate arrived quickly and safely. It has earned the enthusiastic approval of our entire riding club.
Theodore M. –
Best investment I’ve made in years, hands down. We took it out onto the rugged trails and put it through a brutal test. This KTM SXF 350 2021 Dirt Bike is outstanding. The responsiveness and build integrity are worth every single penny.
Charlotte H. –
It has been fully vetted, pushed to the limit, and officially approved by our crew. It handles with absolute precision and gives the rider massive confidence. The pure excitement this brings is hard to put into words. Highly recommend this store.
Emma W. –
Ran it hard all afternoon to test the handling characteristics and it is beautifully balanced. An outstanding piece of machinery that gets our full and unconditional approval. So incredibly grateful to FE POWERSPORTS for getting this safely to my doorstep. Having it operational here in Berlin, Germany is fantastic.
Lea B. –
Greetings from London, United Kingdom. I am delighted with the purchase of this KTM SXF 350 2021 Dirt Bike. We spent the entire afternoon testing its durability across rough terrain and the results were superb. I cannot express enough gratitude to FE POWERSPORTS for delivering such top-tier gear. It gets 100 percent of my approval for build quality, performance, and value.
Daniel H. –
Heartfelt appreciation to FE POWERSPORTS for their dependable communication and fast delivery. My shipment arrived in immaculate condition here in Cologne, Germany. Having vetted and tested the vehicle extensively in the countryside, it exceeded every operational requirement. Completely vetted, tested, and granted my full operational approval without any hesitation.
Henrik T. –
I am immensely grateful to the entire team at FE POWERSPORTS for making this order so smooth. My order arrived in pristine condition here in Barcelona, Spain. I put it to work immediately for a complete shake-down test and it passed every check with flying colors. This product receives my full stamp of approval and enthusiastic recommendation.
Felix G. –
Having extensively vetted and tested its power and stability, the unit is in peak condition. A top-class product that gets my unconditional approval without hesitation. I am immensely grateful to the entire team at FE POWERSPORTS for making this order so smooth. It is performing remarkably well here in Bergen, Norway.
Oliver T. –
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. Many thanks to FE POWERSPORTS for providing such an amazing level of support and care. Having it operational here in Dublin, Ireland is fantastic.
Kieran M. –
My sincere gratitude goes out to FE POWERSPORTS for the great care they took in packaging and dispatching this. My order arrived in pristine condition here in Edinburgh, United Kingdom. Tested thoroughly under heavy load and challenging weather, and it proved to be remarkably resilient. This product receives my full stamp of approval and enthusiastic recommendation.
David R. –
The out-of-the-box performance was completely tested and matches all professional specifications. Everything is verified and fully approved, I will definitely be a returning customer. Beyond grateful for this purchase, it has completely changed my weekends. It is an absolute pleasure having it here in Mississippi.
Max B. –
Greetings from Belfast, United Kingdom. I am so happy with this item. Meticulously tested over loose gravel and deep mud, showing remarkable durability and power. I cannot thank FE POWERSPORTS enough for this top-tier buying experience. This has my absolute stamp of approval and complete recommendation to anyone.
Lucas A. –
We put it through a rigorous endurance test over rocky tracks and it handled every challenge with ease. Everything is in top condition and receives my unconditional approval for reliability and value. Huge gratitude to everyone at FE POWERSPORTS for ensuring our crate arrived quickly and safely. It is performing magnificently here in Normandy, France.
Chloé D. –
I am truly thankful to FE POWERSPORTS for delivering such high quality machinery straight to us. My order arrived in pristine condition here in Besançon, France. Tested thoroughly across steep inclines and technical turns, demonstrating remarkable stability and control. Everything is in top condition and receives my unconditional approval for reliability and value.
Lukas D. –
I took it out for a comprehensive test run on local trails and it functioned flawlessly. Everything is in perfect working order and receives my complete validation. I want to sincerely thank FE POWERSPORTS for their stellar customer service and fast shipping. It is performing remarkably well here in London, United Kingdom.
Elias S. –
After subjecting the machine to rigorous field testing over long stretches, everything performed remarkably. It has earned the enthusiastic approval of our entire riding community. Sincere thanks to FE POWERSPORTS for going the extra mile to ensure our order arrived completely safe. It is performing magnificently here in Chemnitz, Germany.
Hazel R. –
The KTM SXF 350 2021 Dirt Bike arrived on time. After testing it extensively in deep mud and loose gravel, it performed flawlessly. Best investment I’ve made in years, hands down. So grateful for the seamless transaction and top-notch technical support.
Louis C. –
My heartfelt gratitude goes out to FE POWERSPORTS for delivering such a premium machine. The delivery arrived safely here in Copenhagen, Denmark. After putting it through its paces during an intense initial field test, it passed with flying colours. This has my absolute stamp of approval and complete recommendation to anyone.
Noah G. –
Greetings from Toulon, France. I am so thankful for the purchase of this KTM SXF 350 2021 Dirt Bike. I conducted a thorough trial run across various local countryside paths and the machine operated flawlessly. A warm thank you to the fantastic team at FE POWERSPORTS for shipping this item in immaculate condition. Fully verified, tested, and proudly approved for all our upcoming trail excursions.
Luca H. –
It brings back that raw, pure childhood happiness. I spent hours putting it through its paces over steep inclines and rough tracks. This KTM SXF 350 2021 Dirt Bike is outstanding. Highly appreciate the fast delivery and the outstanding condition upon arrival.
Oliver H. –
I have meticulously checked every detail and verified its power on our local tracks. Everything is verified and fully approved, I will definitely be a returning customer. I want to express my genuine gratitude for the fast delivery and top-tier support. It is an absolute pleasure having it here in North Carolina.
Ava J. –
Greetings from Warsaw, Poland. I am so happy with this item. Ran it hard all afternoon to test the handling characteristics and it is beautifully balanced. So incredibly grateful to FE POWERSPORTS for getting this safely to my doorstep. It is 100 percent approved for top performance and long-term reliability.
Lukas W. –
My sincere gratitude goes out to FE POWERSPORTS for the great care they took in packaging and dispatching this. My order arrived in pristine condition here in Paris, France. Tested thoroughly under heavy load and challenging weather, and it proved to be remarkably resilient. Thoroughly vetted, tested, and fully approved for all future rides.
Sophia C. –
Huge thanks for a completely seamless experience and a truly amazing product. This KTM SXF 350 2021 Dirt Bike was delivered perfectly to me here in Delaware. 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.
John S. –
Exceeded every single expectation I had. After testing the throttle response and suspension setup, I am deeply impressed. This KTM SXF 350 2021 Dirt Bike is outstanding. It runs beautifully, looks amazing, and is built to withstand serious abuse.
Léa R. –
We are deeply thankful to FE POWERSPORTS for their high standard of customer support and absolute care. My order arrived in pristine condition here in Provence, France. I conducted a thorough trial run across various local countryside paths and the machine operated flawlessly. It earns my full stamp of approval and highest recommendation without any hesitation.
Lina G. –
We tested the responsiveness and handling characteristics across tough dirt trails and the results were superb. Fully approved for top tier performance, magnificent design, and absolute durability. A warm thank you to the fantastic team at FE POWERSPORTS for shipping this item in immaculate condition. It is performing magnificently here in Brittany, France.
Jonas D. –
Greetings from Lyon, France. I am delighted with the purchase of this KTM SXF 350 2021 Dirt Bike. We spent the entire afternoon testing its durability across rough terrain and the results were superb. Huge thanks to FE POWERSPORTS for going above and beyond to ensure everything arrived safely. Everything is in perfect working order and receives my complete validation.
Leo J. –
Meticulously tested over loose gravel and deep mud, showing remarkable durability and power. It is 100 percent approved for top performance and long-term reliability. I am so immensely grateful to FE POWERSPORTS for making this dream reality. Having it operational here in Dublin, Ireland is fantastic.
Olivia A. –
The KTM SXF 350 2021 Dirt Bike arrived on time. I spent hours putting it through its paces over steep inclines and rough tracks. Genuinely obsessed with the performance. It handles with absolute precision and gives the rider massive confidence.
Mason R. –
So incredibly thankful to finally have this sitting in my garage. This KTM SXF 350 2021 Dirt Bike was delivered perfectly to me here in Michigan. Ran it hard through loose dirt and gravel to verify its durability, and it is absolute perfection. Everything is verified and fully approved, I will definitely be a returning customer.
Clara S. –
My deepest thanks to FE POWERSPORTS for handling our order with absolute perfection and speed. My shipment arrived in immaculate condition here in Saxony, Germany. Having completed multiple high speed testing runs in various outdoor conditions, I am thoroughly impressed. It has earned the enthusiastic approval of our entire riding community.
Ivy G. –
Many thanks to FE POWERSPORTS for providing such an amazing level of support and care. The delivery arrived safely here in Paris, France. Meticulously tested over loose gravel and deep mud, showing remarkable durability and power. Fully operational, completely approved, and deeply loved by our family.
Thomas K. –
Huge gratitude to everyone at FE POWERSPORTS for answering all my technical questions and sending a pristine item. My shipment arrived in immaculate condition here in Munich, Germany. Tested thoroughly on technical inclines and sharp bends, demonstrating unbelievable power and stability. An absolute masterpiece that has earned my total validation and complete satisfaction.
Max W. –
Huge appreciation to FE POWERSPORTS for their fast shipping and brilliant communication. The delivery arrived safely here in Dublin, Ireland. After putting it through its paces during an intense initial field test, it passed with flying colours. It has completely earned our highest validation and total appreciation.
Nils W. –
Having extensively vetted and tested its power and stability, the unit is in peak condition. Fully verified, tested, and granted my total operational approval. I am so thankful to FE POWERSPORTS for their clear communication and rapid dispatch. It is performing remarkably well here in Porto, Portugal.
Laura T. –
Greetings from Hamburg, Germany. I am so happy with this item. Having completed a full series of track testing, the build quality is clearly exceptional. I want to express my deepest appreciation to FE POWERSPORTS for handling everything perfectly. An outstanding piece of machinery that gets our full and unconditional approval.