2020 KTM 250 SX-F

Meet the fastest and lightest 250cc four-stroke motocrosser.

250 SX-F front right
2020 KTM 250 SX-FKTM

This past year was a big one for the KTM 250 SX-F. The Austrian manufacturer’s quarter-liter four-stroke motocrosser received a stiffer frame, a more rigid upper triple clamp, swingarm revisions, a new exhaust system, and updated bodywork, among other changes. For 2020, the 250 SX-F benefits from an optional perforated airbox cover along with revised settings for the WP Xact air fork and WP Xact shock; the latter also got a new piston. On the Cycle World dyno, the latest model made 40.8 hp and 19.3 pound-feet of torque, nearly identical to the current Husqvarna FC 250. Despite its top-weighted powerband, the engine also produces good bottom-end and strong midrange.

The updated WP suspension feels plusher than before, thereby lessening the stiffer feel of the latest-generation frame. At 231 pounds with a full tank of fuel, the 250 SX-F is also the lightest bike in its class. Plus, it comes with high-quality components, such as a Brembo hydraulic clutch and brakes, and ODI lock-on grips. “The 250 SX-F has a great engine, nimble handling, and top-notch componentry,” tester Eric Storz said. “It really feels like a racebike.”

250 SX-F left side
2020 KTM 250 SX-FKTM

2020 KTM 250 SX-F Reviews, Comparisons, And Competition

Manufacturer Claimed Specifications

Price $9,099
Engine Liquid-cooled, DOHC, single-cylinder
Displacement 249.9cc
Bore x Stroke 78.0mm x 52.3mm
Horsepower N/A
Torque N/A
Transmission 5-speed
Final Drive Chain
Seat Height 37.4 in.
Rake 63.9°
Trail N/A
Front Suspension 48mm fully adjustable; 12.2-in. travel
Rear Suspension Fully adjustable; 11.8-in. travel
Front Tire 80/100-21
Rear Tire 110/90-19
Wheelbase 58.5 in.
Fuel Capacity 1.9 gal.
Claimed Wet Weight 218 lb.

Cycle World Tested Specifications

Seat Height 37.4 in.
Dry Weight 231 lb.
Rear-Wheel Horsepower 40.8 hp @ 13,400 rpm
Rear-Wheel Torque 19.3 lb.-ft. @ 9,200 rpm
0–60 mph N/A
1/4-mile N/A
Braking 30–0 mph N/A
Braking 60–0 mph N/A