What category is the 2026 KTM 150 SX?

The 2026 KTM 150 SX has a Category of Cross / motocross.

What is the engine size of the 2026 KTM 150 SX?

The 2026 KTM 150 SX has a Capacity: of 144.0 ccm (8.79 cubic inches).

How many gears does the 2026 KTM 150 SX have?

The 2026 KTM 150 SX has a Gearbox of 6-speed.

KTM 150 SX - 2026 Specifications and Reviews

Name: 2026 KTM 150 SX
Brand: KTM

The 2026 KTM 150 SX is a lightweight two-stroke motocross machine designed for junior and intermediate riders seeking competitive performance on the track. Known for its agile handling, potent power delivery from the liquid-cooled 144cc engine, and modern fuel injection technology, it excels in cross and motocross competition. The 150 SX delivers the precision and reliability expected from KTM's championship-winning dirt bike lineage.

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2026

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General information
Color Options	Orange/black/grey
Category	Cross / motocross

Engine and Transmission Specifications
Starting	Electric
Clutch	Multi-plate clutch, Brembo hydraulics
Final Drive	Chain (final drive)
Gearbox	6-speed
Cooling System	Liquid
Ignition	Vitesco Technologies EMS
Induction	Injection. Keihin EFI, throttle body 39 mm
Bore x Stroke	58.0 x 54.5 mm (2.3 x 2.1 inches)
Engine Details	Reed intake.
Engine Type	Single cylinder, two-stroke
Capacity:	144.0 ccm (8.79 cubic inches)

Physical measures and capacities
Fuel Capacity	7.20 litres (1.90 US gallons)
Wheelbase	1493 mm (58.8 inches)
Ground Clearance	359 mm (14.1 inches)
Seat Height	958 mm (37.7 inches) If adjustable, lowest setting.
Dry Weight	92.6 kg (204.1 pounds)
KTM 150 SX dimensions and frame
Wheels	Spoked wheels with aluminium rims
Rear Brakes	Single disc. Two-piston calipers.
Brake Disc Diameter	220 mm (8.7 inches)
Front Brakes	Single disc. Four-piston calipers.
Rear Wheel Travel	300 mm (11.8 inches)
Rear Suspension	WP XACT Monoshock with linkage
Front Wheel Travel	310 mm (12.2 inches)
Front Suspension	WP XACT-USD (AER), Ã˜ 48 mm
Frame	Central double-cradle-type 25CrMo4 steel. Aluminum-reinforced polyamide subframe.
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Update specs	Report missing specs or required updates.
Rake (fork angle)	26.1Â°
Exhaust system	Aluminum
Driveline	520 X-ring chain
Year of manufacture	2025
Motorcycle name	KTM 150 SX

Performance Profile & Rider Fit

Best For

Track90%

City5%

Cornering88%

Daily Riding5%

Touring5%

Passenger0%

Rider Profile

Best For	Best suited to intermediate-to-advanced off-road riders, as a small-bore two-stroke motocross machine demands active riding and precise clutch and throttle control to stay in its power band.
Purpose	Built purely for motocross and cross-country racing on dirt tracks, not for street or commuting use.
Rider Fit	Its ultra-light dry weight and tall seat height favor smaller or lighter riders who can still comfortably manage the high seat and aggressive riding stance.
Character	A high-strung, revvy two-stroke that rewards aggressive riding, quick gear changes, and an active body position with sharp, flickable handling.
Not Ideal For	Not suitable for riders wanting a comfortable, relaxed, road-going or touring motorcycle, or anyone seeking passenger capability or long-distance comfort.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2026 KTM 150 SX Rider Ergonomics Assessment

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Feet:

At 958mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2026 KTM 150 SX, with a cramped knee angle of around 85 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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