2022 Husqvarna FC 450 Dyno Test

Horsepower and torque figures on Husky’s 450 MX bike.

Husqvarna’s FC 450 has a few unique parts that separate it from the KTM 450 SX-F and GasGas MC 450F, such as a composite carbon fiber subframe and a 10mm-lower suspension setup as of last year. Aside from those items, the bodywork, and a few other miscellaneous parts, the trio are quite similar.

One of the many components the FC 450 shares with its Austrian stablemates is the engine. However, its brand-specific subframe and correspondingly different airbox can affect power delivery on the track and output on the dyno, although not dramatically.

At peak, the FC 450 makes 53.5 hp at 9,400 rpm and 33.7 pound-feet of torque at 7,900 rpm. That equates to 1.5 hp and 0.6 pound-feet of torque less than this year’s class leader on our in-house dyno, the 450 SX-F. Husqvarna’s 450cc motocrosser is plenty powerful on the track though, as we learned leading up to and during our annual 450 Motocross Shootout.

2022 Husqvarna FC 450 Dyno Chart.Robert Martin Jr.

2022 Husqvarna FC 450 Engine Specifications

Engine Type: SOHC, liquid-cooled, four-stroke single-cylinder; 4 valves/cyl.
Displacement: 450cc
Bore x Stroke: 95.0 x 63.4mm
Compression Ratio: 12.75:1
Fuel Delivery: Electronic fuel injection w/ 44mm throttle body