What category is the 2003 KTM 50 SX Pro Junior LC?

The 2003 KTM 50 SX Pro Junior LC has a Category of Minibike, cross.

What is the engine size of the 2003 KTM 50 SX Pro Junior LC?

The 2003 KTM 50 SX Pro Junior LC has a Capacity: of 49.80 ccm (3.04 cubic inches).

What type of engine does the 2003 KTM 50 SX Pro Junior LC have?

The 2003 KTM 50 SX Pro Junior LC has a Engine type of Single cylinder, two-stroke.

Is the 2003 KTM 50 SX Pro Junior LC air cooled or liquid cooled?

The 2003 KTM 50 SX Pro Junior LC has a Cooling system of Liquid.

How much does the 2003 KTM 50 SX Pro Junior LC weigh?

The 2003 KTM 50 SX Pro Junior LC has a Dry weight of 37.6 kg (82.9 pounds).

What is the seat height of the 2003 KTM 50 SX Pro Junior LC?

The 2003 KTM 50 SX Pro Junior LC has a Seat height of 585 mm (23.0 inches) If adjustable, lowest setting..

KTM 50 SX Pro Junior LC - 2003 Specifications and Reviews

Name: 2003 KTM 50 SX Pro Junior LC
Brand: KTM

The 2003 KTM 50 SX Pro Junior LC is a liquid-cooled two-stroke minibike designed for young riders progressing in competitive motocross. Known for its responsive handling and aggressive geometry, this machine excels in youth racing with capable suspension travel and disc braking. The 50cc powerplant delivers spirited performance ideal for developing junior riders' skills on the track.

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Engine and Transmission Specifications
Transmission type,final drive	Chain
Cooling system	Liquid
Fuel system	Carburettor
Bore x stroke	39.5 x 40.0 mm (1.6 x 1.6 inches)
Engine type	Single cylinder, two-stroke
Capacity:	49.80 ccm (3.04 cubic inches)


Category	Minibike, cross
Year	2003
Model	KTM 50 SX Pro Junior LC

Brakes, suspension, Frame and wheels
Rear brakes diameter	90 mm (3.5 inches)
Rear brakes	Expanding brake (drum brake)
Front brakes diameter	160 mm (6.3 inches)
Front brakes	Single disc
Rear tyre dimensions	2.50-10
Front tyre dimensions	2.75-10
Rear suspension travel	205 mm (8.1 inches)
Front suspension travel	140 mm (5.5 inches)
Physical measures and capacities
Fuel capacity	2.00 litres (0.53 gallons)
Wheelbase	910 mm (35.8 inches)
Ground clearance	220 mm (8.7 inches)
Alternate seat height	610 mm (24.0 inches) If adjustable, highest setting.
Seat height	585 mm (23.0 inches) If adjustable, lowest setting.
Dry weight	37.6 kg (82.9 pounds)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

Best For

Track40%

City5%

Cornering60%

Daily Riding5%

Touring0%

Passenger0%

Rider Profile

Best For	This is a first-step competition machine built specifically for young children just starting out in motocross, not for teens or adults of any skill level.
Purpose	It exists purely to teach small kids the basics of motocross racing on a scaled-down, centrifugal-clutch bike that removes the complexity of manual shifting.
Rider Fit	Its tiny 585 mm seat height and 37.6 kg weight are designed around a young child's small stature and low strength, not any adult rider.
Character	Simple, tough, and forgiving in character, with an automatic clutch and mellow two-stroke delivery intended to build confidence rather than deliver thrills.
Not Ideal For	This bike is not suitable for any adult, teenager, or anyone seeking real speed, comfort, or road-going capability.

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