2025 KTM 250 SX

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