The KTM 450 SX-F receives praise in engine, suspension, ergonomics, and braking departments to make it a motocrosser worthy of its podium finish in the Dirt Rider comparison.
Lightest in its class at 234 pounds fully fueled
Fast, yet easy-to-ride engine
Best brakes in class
ODI lock-on grips are a plus
Powertrain: Engine, Transmission, and Performance
On our rear-wheel dyno, the KTM 450 SX-F produced 54.8 hp at 9,500 rpm and 34.6 pound-feet of torque at 7,400 rpm—impressive numbers to carry its light, CW-measured 234 pounds around the track.
In Dirt Rider’s extensive review, Andrew Oldar noted that the 450 SX-F has long, smooth, and predictable delivery and while it has a similar power curve to the CRF450R, the most powerful of the bunch, the KTM is slightly easier to control.
This powerplant not only appeals to vet and pro riders, but to amateurs as well with its strong engine and easy-to-ride mannerisms. A couple of downsides to the 450cc SOHC four-stroke would be that vibration is noticeable and the engine is not as lively as its competitors.
The Brembo hydraulic clutch system was also praised for having a touch more of an on-off feel compared to the others in its class.