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.
5-speed
Electric starter
72 mm
66.4 mm
Wet, DDS multi-disc clutch, Brembo hydraulics
249 cm³
Vitesco Technologies EMS
1-cylinder, 2-stroke engine
Keihin EFI, throttle body 39 mm
99.4 kg
7.2 l
1493 mm
260 mm
220 mm
Disc brake
Disc brake
520, Non-sealed
Central double-cradle-type 25CrMo4 steel
WP XACT-USD (AER), Ø 48 mm
354 mm
Neken, aluminium Ø 28/22 mm
WP XACT Monoshock with linkage
958 mm
63.9 °
Aluminum-reinforced polyamide
310 mm
300 mm
Spoked wheels with aluminium rims