How Much Power Does the 2024 KTM 450 SX-F Make?

Dyno testing KTM’s standard-model 450cc MX bike for horsepower and torque.

The KTM 450 SX-F is known for having a linear power delivery, but that doesn’t stop it from logging some of the highest figures in the class time and time again. This year is a prime example of that, as the 2024 model boasts the most peak horsepower and torque of all the standard-model 450cc motocross bikes. Our in-house dyno recorded maximum figures of 56.4 hp and 34.6 lb.-ft. of torque at its rear wheel.

“I enjoy the smooth power KTM’s 450 SX-F offers,” test rider Michael Wicker said. “It lacks low-end intensity compared to the Japanese bikes, but has stronger bottom-end to midrange than the Husqvarna FC 450 and GasGas MC 450F. Of the two engine maps, I really like using the aggressive map 2 (green light illuminated) as it makes the response sharper overall.”

2024 KTM 450 SX-F Dyno ChartRobert Martin

2024 KTM 450 SX-F Engine Specs

Engine Type: SOHC, liquid-cooled, four-stroke single-cylinder; 4 valves/cyl.
Displacement: 450cc
Bore x Stroke: 95.0 x 63.4mm
Compression Ratio: 13.1:1
Fuel Delivery: Electronic fuel injection w/ 44mm throttle body