Think "unbridled 2-stroke performance" and you'll probably see a KTM 250 SX in your mind's eye. For good reason too - there isn't much to compare it to. The 2025 KTM 250 SX takes that even further with a slew of fresh chassis enhancements, making it even more of a legend and one deserving of the record books.

ENGINE

  • TRANSMISSION 5-speed
  • STARTER Electric starter
  • STROKE 72 mm
  • BORE 66.4 mm
  • CLUTCH Wet, DDS multi-disc clutch, Brembo hydraulics
  • DISPLACEMENT 249 cm³
  • EMS Vitesco Technologies EMS
  • DESIGN 1-cylinder, 2-stroke engine
  • FUEL-MIXTURE GENERATION Keihin EFI, throttle body 39 mm

CHASSIS

  • WEIGHT (WITHOUT FUEL) 99.4 kg
  • TANK CAPACITY (APPROX.) 7.2 l
  • WHEELBASE 1493 mm
  • FRONT BRAKE DISC DIAMETER 260 mm
  • REAR BRAKE DISC DIAMETER 220 mm
  • FRONT BRAKE Disc brake
  • REAR BRAKE Disc brake
  • CHAIN 520, Non-sealed
  • FRAME DESIGN Central double-cradle-type 25CrMo4 steel
  • FRONT SUSPENSION WP XACT-USD (AER), Ø 48 mm
  • GROUND CLEARANCE 354 mm
  • HANDLEBAR Neken, aluminium Ø 28/22 mm
  • REAR SUSPENSION WP XACT Monoshock with linkage
  • SEAT HEIGHT 958 mm
  • SILENCER Aluminium
  • STEERING HEAD ANGLE 63.9 °
  • REAR SUBFRAME DESIGN Aluminum-reinforced polyamide
  • SUSPENSION TRAVEL (FRONT) 310 mm
  • SUSPENSION TRAVEL (REAR) 300 mm
  • WHEELS Spoked wheels with aluminium rims