350 SX-F Video
Stefan Everts, world motocross champion with 14 victories in 15 Grand Prix, set out as the KTM Race Director to design a better MX bike.
Everts had a vision where the future of motocross was heading and in KTM he found an ideal partner for his vision: efficient and maximum practicable performance from smaller displacements in an overall package that’s tailored unconditionally to the requirements of the rider.
After 4 years in the making, it’s ready: the new 2011 KTM 350 SX-F. With a new engine, fuel injection system and smaller displacement, new bodywork, new chassis – in fact, a whole new concept.
What with the first Grand Prix victory and racing to the top of the overall standings in the MX1 class after only two races, maybe even the beginning of a new era in motocross.
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Engine
type |
Single cylinder,
4-stroke |
| Displacement |
349.7 cc |
Bore
x stroke |
88/57.5 mm |
Compression
ratio |
13.5:1 |
| Starter |
Electric starter/12V 3
Ah |
| Transmission |
5 gears |
| Carburetor |
Keihin EFI, throttle
body 42 mm |
| Control |
4 V/DOHC with finger
followers |
| Lubrication |
Pressure lubrication
with 2 oil pumps |
Engine
lubrication |
Motorex, SAE 10W50 |
Primary
drive |
24:73 |
Final
drive |
14:50 |
| Cooling |
Liquid cooled |
| Clutch |
Wet multi-disc clutch,
operated hydraulically |
| Ignition |
Keihin EMS |
|
|
| |
| Frame |
Central double-cradle-type 25CrMo4 |
| Subframe |
Aluminium |
| Handlebar |
Renthal, Aluminium Ø 28/22 mm (1.10/0.87") |
| Front suspension |
WP USD Ø 48 mm (1.89") |
| Rear suspension |
WP-Monoshock with linkage |
| Suspension travel front/rear |
300/330 mm |
| Brakes, front/rear |
Disc brakes 260/220 mm (10.24/8.66") |
| Rims, front/rear |
1.60 x 21"; 2.15 x 19" Excel |
| Tires, front/rear |
80/100-21"; 110/90-19" |
| Chain |
5/8 x 1/4" |
| Main silencer |
Aluminium |
| Steering head angle |
63.5° |
| Wheel base |
1495±10 mm |
| Ground clearance (unloaded) |
375 mm |
| Seat height |
992 mm |
| Tank capacity |
approx. 7.5 liters |
| Weight (no fuel) |
approx. 103.9 kg |
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