There are very few sounds that can’t be beaten. The crack of a soda can on a blistering hot day. The ping of the perfectly executed golf shot. And the scream of a 125 cc 2-stroke charging down a long straightaway. The 2025 KTM 125 SX takes its leads directly from the Factory Racing team and puts them to work like nothing else. Like the sound it makes, it cannot be beaten.
6-speed
Electric starter
54.5 mm
54 mm
Wet multi-disc DS clutch, Brembo hydraulics
124.8 cm³
Vitesco Technologies EMS
1-cylinder, 2-stroke engine
Keihin EFI, throttle body 39 mm
92.4 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
359 mm
Neken, aluminium Ø 28/22 mm
WP XACT Monoshock with linkage
958 mm
Aluminium
63.9 °
310 mm
300 mm
Spoked wheels with aluminium rims