What category is the 1999 KTM SX 125?

The 1999 KTM SX 125 has a Category of Enduro / offroad.

What is the engine size of the 1999 KTM SX 125?

The 1999 KTM SX 125 has a Capacity: of 125.00 ccm (7.63 cubic inches).

What type of engine does the 1999 KTM SX 125 have?

The 1999 KTM SX 125 has a Engine type of Single cylinder, two-stroke.

Is the 1999 KTM SX 125 air cooled or liquid cooled?

The 1999 KTM SX 125 has a Cooling system of Liquid.

How much does the 1999 KTM SX 125 weigh?

The 1999 KTM SX 125 has a Dry weight of 91.0 kg (200.6 pounds).

KTM SX 125 - 1999 Specifications and Reviews

Name: 1999 KTM SX 125
Brand: KTM

The 1999 KTM SX 125 is a lightweight two-stroke enduro bike designed for amateur and intermediate off-road riders seeking agile handling and responsive performance. Its compact 91kg frame and 125cc single-cylinder engine deliver excellent maneuverability on technical terrain, making it ideal for motocross and trail riding. The bike is best known for KTM's reliable engineering and accessible entry point into competitive off-road riding.

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1999

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General information
Category	Enduro / offroad
Year	1999
Model	KTM SX 125
Engine and Transmission Specifications
Transmission type,final drive	Chain
Cooling system	Liquid
Engine type	Single cylinder, two-stroke
Capacity:	125.00 ccm (7.63 cubic inches)

Brakes, suspension, Frame and wheels
Rear brakes	Single disc
Front brakes	Single disc

Physical measures and capacities
Fuel capacity	7.50 litres (1.98 gallons)
Wheelbase	1,461 mm (57.5 inches)
Dry weight	91.0 kg (200.6 pounds)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

Best For

Track55%

City15%

Cornering80%

Daily Riding10%

Touring10%

Passenger5%

Rider Profile

Best For	Best suited to intermediate or experienced off-road riders comfortable with a peaky two-stroke powerband and minimal creature comforts.
Purpose	Built as a lightweight motocross-style enduro machine for trail riding, motocross tracks, and technical off-road terrain rather than road use.
Rider Fit	Its featherweight 91 kg dry chassis and tall, firm suspension favor fit, agile riders who can stand and shift body weight actively.
Character	A raw, high-revving two-stroke that rewards aggressive, momentum-based riding with sharp handling and explosive acceleration on tap.
Not Ideal For	Not a good fit for riders wanting a comfortable commuter, a passenger-friendly bike, or long-distance road touring capability.

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