2010 KTM 450 SX-F First Ride Picture, All new design triple clamps with a 22mm offset and a lower bend Renthal bar compensate for a lower seating position. The 450SXF does have the dual mapping. It is the same plug/unplug set up that can be converted to a bar mounted switch setup. We only rode the bike in the aggressive "plugged in" position. One more reason this should prove to be a very good all around bike. Sorry for the late relpy, just go in from Portugal .By welding the main body of the frame lower in the steering head, it lowers the center of gravity. Rear wave rotor mated to Brembo caliper means more stopping power. Heavy braking in the bumps did get the bike a little squirrely. The 450 SX-F is quieter thanks to the 'Header Pipe Resonator System,' but it doesn't lack any power. This bike is steathly fast. You will be able to sneak up on the competition. 
KTM may have cut back on some models but they have consolidated the best of all worlds into the current ones. The changes for 2010 have made the SX-F a great motocross bike, but the new KTM 450 SX-F could also be the ultimate off-road crossover bike. Smooth enough for enduro, just lighter, faster and more nimble. Just look at the starting line at any professional GNCC or WORCS race, there won’t be an enduro bike in sight; they are all converted motocrossers. I spent a vast amount of time last season on a 2009 450 XC-F and this bike is significantly more user-friendly. It will be interesting to see how it stacks up against the other 450 motocross bikes. One of the pressing questions is whether or not combining the XC-F and SX-F works as well for top-level moto guys, because this is certainly a bike that makes the average rider go faster.
2010 KTM 450 SX-F Specs
Engine:Single cylinder, liquid cooled, 4-stroke, 4-valve DOHC
Displacement:449.3 cc
Bore x stroke:97 x 60.8mm
Compression Ratio:12.5:1
Starter:E-Starter/12 V 4 Ah
Transmission:5-speed
Carburetor:Keihin FCR MX 41
Final Drive:Chain, 14:52
Clutch:Wet multi-disc clutch, operated hydraulically
Ignition:Kokusan
Frame:Central double-cradle-type 25CrMo4, aluminum subframe
Front Suspension:WP-USD 48mm, 11.8 inches travel
Rear Suspension:WP PDS shock absorber, 13.2 inches travel
Front Brakes:250mm disc, twin-piston Brembo caliperRear Brake:220mm disc, single-piston Brembo caliper
Front Tire:80/100-21Rear Tire:110/90-19
Rake:26.5 degrees
Wheelbase:58.1 inches
Ground Clearance:15 inches
Seat Height:38.8 inches
Fuel Capacity:2.1 gallons
Tank Empty Weight:231 pounds (claimed
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