autoevolution

Segment: Enduro/Offroad

The engine of the 250 SX has been known and respected for being the most powerful 2-stroke engine in its class.

But we thought the segment could use an extra push and a solid statement: 2-strokes have a future at KTM. Their outstanding power-to-weight ratio, low cost and simplicity see to that. Putting our money where our mouth is, we gave the 250 SX engine an all new architecture with a new shaft arrangement for better mass centralization, a new cylinder with twin-valve controlled power valve, a new counter balance shaft for less engine vibrations, a 5-speed transmission and a hydraulically operated DDS clutch.

KTM 250 SX 2017 - Present 5 Photos
KTM 250 SX (2017 - Present)KTM 250 SX (2017 - Present)KTM 250 SX (2017 - Present)KTM 250 SX (2017 - Present)KTM 250 SX (2017 - Present)

KTM 250 SX 250

engine specs
Type
Single cylinder, 2-stroke, liquid cooled
Displacement
249 cm3
Bore X Stroke
2.6x2.8 in OR 66 mm
Compression Ratio
14.4:1
Horsepower
/ KW(hp)/RPM
Torque
0/- lb-ft/RPM OR 0 Nm/RPM
Fuel System
Carburetor
transmission specs
Gearbox
5-Speed
Clutch
Wet, DDS multi-disc clutch, Brembo hydraulics
Primary Drive
-
Final Drive
Chain
chassis specs
Frame
Chrome-molybdenum steel central-tube frame
Front Suspension
WP-USD, AER 48, 48 mm
Rear Suspension
WP shock absorber with linkage
Front Brake
Single disc 260 mm
Rear Brake
Single disc 220 mm
dimension specs
Overall Length
-
Overall Width
-
Seat Height
37.8 in OR 960 mm
Weelbase
58.5 in OR 1486 mm
Ground Clearance
14.8 in OR 376 mm
Weight
223 lbs OR 101 kg
Fuel Capacity
1.8 gallons OR 6.8 L
tyres specs
Front
80/100-21
Rear
100/90-19
power system specs
Power pack
-
Nominal Capacity
-
Maximum Capacity
-
Charger type
-
Charging time (normal)
-
Charging time (quick)
-
Range
-
  report a mistake on this page