How Much Power Does the 2026 KTM 250 SX-F Make?

Dyno testing KTM’s MY26 standard 250cc four-stroke motocross bike for horsepower and torque.

Success in the 250cc four-stroke motocross bike division has a lot to do with a powerful engine, and that’s one reason why KTM’s 250 SX-F is a high achiever year after year. The 2026 model’s fuel-injected liquid-cooled DOHC four-stroke 250cc single-cylinder engine produces class-leading figures of 41.8 hp and 19.7 lb.-ft. of torque, as measured by our in-house Dynojet 250i rear-wheel dynamometer. For comparison, that’s 1.0 hp more than Triumph’s TF 250-X and 0.2 lb.-ft. of torque more than GasGas’ MC 250F, which are runner-ups in peak horsepower and torque, respectively.

KTM’s 250 SX-F is a frontrunner in engine performance,” test rider Michael Wicker said. “It’s smooth from low-end to midrange, likes to be ridden at high rpm, and is slightly stronger than its model-equivalent Austrian cousins, the Husqvarna’s FC 250 and GasGas’ MC 250F.”

2026 KTM 250 SX-F Dyno Chart.Robert Martin

2026 KTM 250 SX-F Engine Specs

Engine Type: DOHC, liquid-cooled, four-stroke single-cylinder; 4 valves
Displacement: 250cc
Bore x Stroke: 81.0 x 48.5mm
Compression Ratio: 14.5:1
Fuel Delivery: Electronic fuel injection w/ 44mm throttle body