KTM 150 SX (2025)

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.

Key Specifications

Engine Type	1-cylinder, 2-stroke engine
Engine Capacity	143.99 cc
Max Power	n/a
Max Torque	n/a
Top Speed	n/a
Fuel Tank Capacity	7.2 L / 1.9 US gallons
Weight (Wet/Kerb)	~ 101.3 kg / 223.32 lbs
Seat Height	958 mm / 38.77 inches

*n/a – information not provided by manufacturer

ktm-150-sx-2025-throttlecraze-1_throttlecraze.com

All Specifications

Make & Model

Model	KTM 150 SX
Year	2025

Engine

Engine Type	1-cylinder, 2-stroke engine
Displacement	143.99 cc
Bore x Stroke	58 x 54.5 mm
Number of Cylinders	1
Max Horsepower	n/a
Max Torque	n/a
Engine Management System	Vitesco Technologies EMS
Fuel-mixture System	Keihin EFI, throttle body 39 mm
Ignition System	Electronic Ignition
Fuel	Super Unleaded (ROZ 95)

Performance

Top Speed	n/a
Acceleration (0-100 km/h, 0-60 mph)	n/a

*n/a – information not provided by manufacturer

Transmission

Clutch	Wet, DDS multi-disc clutch, Brembo hydraulics
Gearbox	6 speed transmission, claw shift
Primary Drive Ratio	23:73
Gear Ratios	1st gear -14:32 2nd gear – 15:30 3rd gear – 17:28 4th gear – 19:27 5th gear – 19:23 6th gear – 22:24
Final Drive	Chain (520, Non-sealed)

Electrical & Electronics System

Battery	12.8 V, 2Ah HJTZ5S-FP-C, Lithium Ion
Starter	Electric starter
Headlight Type	LED
Taillight Type	LED
Riding Modes	2 Maps (Map 1 & 2)

Chassis & Suspension

Frame Type	Central double-cradle-type 25CrMo4 steel
Front Suspension	WP XACT-USD (AER), Ø 48 mm
Front Suspension Travel	310 mm / 12.2 inches
Rear Suspension	WP XACT Monoshock with linkage
Rear Suspension Travel	300 mm / 11.8 inches
Rear Subframe	Aluminum-reinforced polyamide

Wheels & Brakes

Wheels	Alloy rims, spokes
Front Tire Size	80/100 -21 51M TT
Rear Tire Size	100/90 – 19 57M TT
Front Brakes	Disc brake 260 mm
Rear Brakes	Disc brake 220 mm

Dimension & Weights

Seat Height	958 mm / 38.77 inches
Wheelbase	1493 mm / 58.77 inches
Ground Clearance	359 mm / 14.13 inches
Fuel Tank Capacity	7.2 L / 1.9 US gallons
Wet (kerb/curb) Weight	~ 112 kg / 246.91 lbs
Dry Weight	~ 92.6 kg / 204.1 lbs

ktm-150-sx-2025-throttlecraze-4_throttlecraze.com

ktm-150-sx-2025-throttlecraze-3_throttlecraze.com

*We strive to provide the most comprehensive and accurate specifications possible. However, certain details may not be available if the manufacturer did not disclose them or if the information is no longer publicly accessible. If you find any discrepancy with any data on this site, please feel free to let us know at contact@throttlecraze.com