When you see the 2025 KTM 450 SX-F roll off the trailer, you know it means business. With 5 AMA 450 Supercross titles in the last 7 seasons, the 2025 KTM 450 SX-F rolls up to the starting gate already armed with the learnings of past championships - only this time, it's freshly loaded with an all-new arsenal of weaponry.

ENGINE

  • TRANSMISSION 5-speed
  • STARTER Electric starter
  • STROKE 63.4 mm
  • BORE 95 mm
  • CLUTCH Wet, DDS multi-disc clutch, Brembo hydraulics
  • COMPRESSION RATIO 13.1
  • DISPLACEMENT 449.9 cm³
  • EMS Keihin EMS
  • DESIGN 1-cylinder, 4-stroke engine
  • FUEL-MIXTURE GENERATION Keihin EFI, throttle body 44 mm

CHASSIS

  • WEIGHT (WITHOUT FUEL) 102.6 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 343 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