What category is the 2004 KTM 125 SX?

The 2004 KTM 125 SX has a Category of Cross / motocross.

What is the engine size of the 2004 KTM 125 SX?

The 2004 KTM 125 SX has a Capacity: of 124.80 ccm (7.62 cubic inches).

What type of engine does the 2004 KTM 125 SX have?

The 2004 KTM 125 SX has a Engine type of Single cylinder.

Is the 2004 KTM 125 SX air cooled or liquid cooled?

The 2004 KTM 125 SX has a Cooling system of Liquid.

How many gears does the 2004 KTM 125 SX have?

The 2004 KTM 125 SX has a Gearbox of 5-speed.

How much does the 2004 KTM 125 SX weigh?

The 2004 KTM 125 SX has a Dry weight of 93.6 kg (206.4 pounds).

What is the seat height of the 2004 KTM 125 SX?

The 2004 KTM 125 SX has a Seat height of 925 mm (36.4 inches) If adjustable, lowest setting..

KTM 125 SX - 2004 Specifications and Reviews

Name: 2004 KTM 125 SX
Brand: KTM

The 2004 KTM 125 SX is a lightweight motocross bike designed for junior riders and beginners entering competitive racing. Its compact frame, low seat height, and responsive 124cc two-stroke engine deliver excellent maneuverability and acceleration on the track. The 125 SX is renowned for being an accessible entry point into KTM's competitive motocross lineup.

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2004

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General information
Category	Cross / motocross
Year	2004
Model	KTM 125 SX
Engine and Transmission Specifications
Transmission typefinal drive	Chain
Gearbox	5-speed
Cooling system	Liquid
Fuel system	Carburettor
Bore x stroke	54.0 x 54.5 mm (2.1 x 2.1 inches)
Stroke	2
Engine type	Single cylinder
Capacity:	124.80 ccm (7.62 cubic inches)

Physical measures and capacities
Wheelbase	1,471 mm (57.9 inches)
Ground clearance	390 mm (15.4 inches)
Alternate seat height	675 mm (26.6 inches) If adjustable, highest setting.
Seat height	925 mm (36.4 inches) If adjustable, lowest setting.
Dry weight	93.6 kg (206.4 pounds)
KTM 125 SX dimensions and frame
Rear brakes diameter	260 mm (10.2 inches)
Rear brakes	Single disc
Front brakes diameter	216 mm (8.5 inches)
Front brakes	Single disc
Rear suspension	WP-PDS-DA shock absorber
Front suspension	WP-USD 48/26 MA/PA
Trail	63 mm (2.5 inches)
Rake (fork angle)	24.0°
Frame type	Chromium molybdenum
Speed and acceleration
Color options	Orange
Fuel capacity	7.50 litres (1.98 gallons)

Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

Best For

Track95%

City10%

Cornering90%

Daily Riding10%

Touring8%

Passenger5%

Rider Profile

Best For	This is a full-on motocross competition bike best suited to intermediate through expert off-road riders, not beginners or casual road riders.
Purpose	Built purely for closed-course motocross racing, it excels at jumps, berms, and rapid direction changes on dirt tracks rather than any street use.
Rider Fit	The tall 958 mm seat height, aggressive ergonomics, and demanding 2-stroke power delivery require good rider fitness, strength, and prior dirt bike experience.
Character	Light, explosive, and razor-sharp in handling, it rewards aggressive riding with a peaky two-stroke power band and minimal weight to manage.
Not Ideal For	It is not suitable for commuting, highway travel, passengers, or riders seeking comfort, storage, or a forgiving low-end power delivery.

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

Rider Fit Visualizer

2004 KTM 125 SX Rider Ergonomics Assessment

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Feet:

At 925mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2004 KTM 125 SX, with a cramped knee angle of around 80 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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Rider Reviews

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MotorcycleDB Review

The 2004 KTM 125 SX is a powerful and agile motocross bike that offers impressive performance on the track. With its 125cc engine, this bike delivers exceptional power and torque, allowing riders to zip through turns and navigate rough terrain with ease. Additionally, the lightweight design of the KTM 125 SX makes it a breeze to maneuver, giving riders a competitive edge during races. Overall, the 2004 KTM 125 SX is a top-notch motocross bike that delivers outstanding performance and handling. Whether you're a beginner or an experienced rider, this bike is a great option for those looking to dominate the motocross track. With its powerful engine and nimble design, the KTM 125 SX is a force to be reckoned with on the track.