KTM 150 SX | 2025

BACK ON THE ATTACK.

It's back! After a 2-year absence, the 2025 KTM 150 SX is once again ready to tear into your favorite MX track. Get ready to experience what it feels like to be a marble launched from a slingshot. The KTM 150 SX pulls hard from the bottom, gallops in the middle, and sings at the top. Which is where it belongs.

ENGINE

• Transmission: 6-speed
• Starter: Electric starter
• Stroke: 54.5 mm
• Bore: 58 mm
• Clutch: Wet multi-disc DS clutch, Brembo hydraulics
• Displacement: 143.99 cm³
• EMS: Vitesco Technologies EMS
• Design: 1-cylinder, 2-stroke engine
• Fuel-Mixture Generation: Keihin EFI, throttle body 39 mm

CHASSIS

• Weight (without fuel): 92.6 kg
• Tank Capacity: 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 X-Ring
• Frame design: Central double-cradle-type 25CrMo4 steel
• Front suspension: WP XACT-USD (AER), Ø 48 mm
• Ground clearance: 359 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