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The new KTM 250 SX with its all-new engine has one of the best power-to-weight ratios in the world of dirt, forming the ultimate fist against more complex 4-stroke rivals. With the grunt to devour all sorts of tracks and terrains, and a lightweight chassis keen to skim the surface, this lovechild of KTM’s R&D and Motorsport departments is born to lead the next pack of winners into a hazy blue future.

FEATURES INCLUDE

Most powerful 2-stroke engine in its class.
New counter balance shaft for less engine vibrations.
5-speed transmission and a hydraulically operated DDS clutch.
Hydraulic Brembo clutch.
Meticulously tuned expansion chamber for maximum torque.
All-new die-cast engine cases feature a 4mm higher clutch shaft and a 19.5mm higher crankshaft.
No tools airbox, replace in seconds.
High-tech, lightweight chrome-moly steel frame.
Cast aluminum swingarm.
Durable seat offers great comfort.
Lightweight polyethylene tank with a capacity of 7 litres.
Aluminum radiators made by WP.
CNC machined hubs and high-end Excel rims.
Dunlop Geomax MX 3S tyres.
Handlebars, tapered, made of high-strength aluminum by NEKEN with ODI lock-on grips.
'No dirt' footpegs.
WP AER 48 front fork, a 48mm USD air-sprung fork.
WP monoshock.
CNC machined triple clamps.
High-tech Brembo brakes are combined with lightweight wave discs made by Galfer.
Kiska Design shaped plastics.



SPECIFICATION

ENGINE

  • DESIGN

    1-cylinder, 2-stroke engine

  • DISPLACEMENT

    249 cm³

  • BORE

    66.4 mm

  • STROKE

    72 mm

  • STARTER

    Kickstarter

  • TRANSMISSION

    5-speed

  • PRIMARY DRIVE

    26:73

  • SECONDARY GEAR RATIO

    14:50

  • CLUTCH

    Wet, DDS multi-disc clutch, Brembo hydraulics

  • EMS

    Kokusan

CHASSIS

  • FRAME DESIGN

    Chrome-molybdenum steel central-tube frame

  • FRONT SUSPENSION

    WP-USD, AER 48, Ø 48 mm

  • REAR SUSPENSION

    WP shock absorber with linkage

  • SUSPENSION TRAVEL (FRONT)

    310 mm

  • SUSPENSION TRAVEL (REAR)

    300 mm

  • FRONT BRAKE

    Disc brake

  • REAR BRAKE

    Disc brake

  • FRONT BRAKE DISC DIAMETER

    260 mm

  • REAR BRAKE DISC DIAMETER

    220 mm

  • CHAIN

    5/8 x 1/4"

  • STEERING HEAD ANGLE

    63.9 °

  • WHEELBASE

    1485 ± 10 mm

  • GROUND CLEARANCE

    375 mm

  • SEAT HEIGHT

    960 mm

  • TANK CAPACITY (APPROX.)

    7 l

  • WEIGHT READY TO RACE (WITHOUT FUEL)

    95.4 kg