KTM 250 SX-F - 2021 Specifications and Reviews
The 2021 KTM 250 SX-F is a competitive motocross machine engineered for intermediate to advanced riders seeking aggressive performance in closed-course racing. Powered by a potent 250cc four-stroke engine with premium Brembo hydraulics and a responsive five-speed transmission, it delivers the precision handling and power delivery expected of KTM's championship-winning SX-F lineage. Best known for its sharp cornering geometry and dependable power characteristics, this bike excels in technical terrain and demanding race conditions.
General information | |
| Category | Cross / motocross |
| Year | 2021 |
| Model | KTM 250 SX-F |
Engine and Transmission Specifications | |
| Driveline | 13:48. Primary drive: 26:72. 520 X-ring chain. |
| Clutch | Wet multi-disc clutch, Brembo hydraulics |
| Transmission type | Chain (final drive) |
| Gearbox | 5-speed |
| Cooling system | Liquid |
| Ignition | Keihin EMS |
| Bore x Stroke | 78.0 x 52.3 mm (3.1 x 2.1 inches) |
| Engine details | Reed intake |
| Engine type | Single cylinder, four-stroke |
| Capacity: | 249.9 ccm (15.25 cubic inches) |
Brakes, suspension, Frame and wheels | |
| Wheels | Wire spoked. |
| Rear brakes | Single disc |
| Diameter | 260 mm (10.2 inches) |
| Front brakes | Single disc |
| Rear tire | 110/90-19 |
| Front tire | 80/100-21 |
| Rear wheel travel | 300 mm (11.8 inches) |
| Rear Suspension | WP XACT Monoshock with linkage |
| Front wheel travel | 310 mm (12.2 inches) |
| Front Suspension | WP XACT-USD, Ø 48 mm |
| Rake (fork angle) | 26.5° |
| Frame type | Central double-cradle-type 25CrMo4 steel |
| | |
Physical measures and capacities | |
| Fuel capacity | 7.00 litres (1.85 US gallons) |
| Wheelbase | 1495 mm (58.9 inches) |
| Ground clearance | 370 mm (14.6 inches) |
| Seat height | 950 mm (37.4 inches) If adjustable, lowest setting. |
| Dry weight | 99.0 kg (218.3 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Electrical | Lithium-ion battery |
| Starter | Electric |
| Color options | Orange/white/black |
Performance Profile & Rider Fit
Best For
Track90%
City10%
Cornering85%
Daily Riding10%
Touring12%
Passenger5%
Rider Profile
| Best For | This is a full-size 250cc motocross machine best suited to intermediate through expert off-road riders, not newcomers to dirt biking. |
| Purpose | Built purely as a motocross competition bike for closed circuits and tracks, with sharp handling and high-performance suspension rather than everyday usability. |
| Rider Fit | The tall 958 mm seat height, firm suspension, and lack of creature comforts demand good rider fitness, leg length, and off-road riding technique. |
| Character | A lightweight, race-bred single-cylinder machine defined by aggressive acceleration, precise cornering, and razor-sharp responsiveness over rough terrain. |
| Not Ideal For | This bike is not suitable for riders wanting a comfortable commuter, a passenger-friendly machine, or a long-distance touring companion. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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Rider Reviews
Total comments: 1

MotorcycleDB Review
The 2021 KTM 250 SX-F is a powerful and agile motocross bike that delivers impressive performance on the track. With its lightweight and nimble design, this motorcycle offers excellent handling and maneuverability, allowing riders to tackle tight corners and challenging terrain with ease. The 250cc engine provides ample power, while the advanced suspension system ensures a smooth and controlled ride. Overall, the 2021 KTM 250 SX-F is a top choice for motocross enthusiasts looking for a high-performance bike that can handle the demands of intense racing. From its sleek and aggressive design to its cutting-edge technology, the 2021 KTM 250 SX-F is a standout in the motocross market. Whether you're a seasoned rider or just getting started in the sport, this bike offers a winning combination of power, performance, and precision. With its championship-winning pedigree and impressive list of features, the 2021 KTM 250 SX-F is a top contender in its class. If you're looking for a motocross bike that can take your riding to the next level, the 2021 KTM 250 SX-F is definitely worth considering.Add a Comment
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