The stock 450 has around 54-55
it is about 37 horsepower
48 hp
51.33 HP Exact
They have 293.20 cc.
It has 170 horsepower
Got this off of KTM talk, 44HP for a 450 exc.
This is according to Motocross Action Magazine Peaking out at 54.3 horsepower is the 2008 KTM 450SXF on the dyno. It is the most powerful 450 motocross bike on the showroom floors.
Seat height on the 2010 450 SX-F is 38.78 inches
According to the guys over at MXA the KTM 250SXF pumps out 38.6 horsepower.
580
500