Over the last few years, the KTM 250 SX-F model has earned a reputation as one of the most powerful and agile motorcycles in its class and after seeing the details of the 2019 model, it’s safe to say that will remain true for another year. The Austrian brand went to work on nearly every area of the small-bore four-stroke, as they completely reworked the engine, frame, swingarm, and suspension for improved performance. Before we spun laps on the track, we asked Tom Moen to go around the 2019 KTM 250 SX-F and point out the key details of the motorcycle.


All-new frame design with focus on stiffness to improve handling and stability
Redesigned, lighter swingarm with additional 5mm of adjustment compared to predecessor
Revised bodywork and seat for new appearance and uninhibited motion
Reworked airbox to improve flow of air through intake system
New fuel tank with improved ergonomics, 1.85L capacity, and revised hose routing
New model-specific exhaust system, featuring FDH resonator on the header pipe and easy to remove silencer
Revised ignition map settings
New lithium ion battery for electric starter system
Redesigned radiators for improved cooling
New main piston in the WP Monoshock
Revised setting in WP AER48 fork
Redesigned upper triple clamp for improved stability
New exhaust valve camshaft and timing
Reworked cylinder head for lighter weight
Diaphragm steel clutch system with one-piece basket and Brembo hydraulic actuation system
New Pankl five-speed transmission
Updated Keihin engine management system, including revised throttle body and optimized ignition maps