What category is the 2003 KTM 640 LC4 Supermoto?

The 2003 KTM 640 LC4 Supermoto has a Category of Super motard.

What is the engine size of the 2003 KTM 640 LC4 Supermoto?

The 2003 KTM 640 LC4 Supermoto has a Capacity: of 625.00 ccm (38.14 cubic inches).

What type of engine does the 2003 KTM 640 LC4 Supermoto have?

The 2003 KTM 640 LC4 Supermoto has a Engine type of Single cylinder, four-stroke.

What is the engine power of the 2003 KTM 640 LC4 Supermoto?

The 2003 KTM 640 LC4 Supermoto has a Power of 54.80.

What is the torque of the 2003 KTM 640 LC4 Supermoto?

The 2003 KTM 640 LC4 Supermoto has a Torque of 55.00 Nm (5.6 kgf-m or 40.6 ft.lbs) @ 5500.

Is the 2003 KTM 640 LC4 Supermoto air cooled or liquid cooled?

The 2003 KTM 640 LC4 Supermoto has a Cooling system of Liquid.

How many gears does the 2003 KTM 640 LC4 Supermoto have?

The 2003 KTM 640 LC4 Supermoto has a Gearbox of 5-speed.

How much does the 2003 KTM 640 LC4 Supermoto weigh?

The 2003 KTM 640 LC4 Supermoto has a Dry weight of 149.0 kg (328.5 pounds).

What is the seat height of the 2003 KTM 640 LC4 Supermoto?

The 2003 KTM 640 LC4 Supermoto has a Seat height of 910 mm (35.8 inches) If adjustable, lowest setting..

KTM 640 LC4 Supermoto - 2003 Specifications and Reviews

The 2003 KTM 640 LC4 Supermoto is a lightweight, nimble supermoto designed for riders seeking playful urban agility and off-road versatility. Powered by a torquey 625cc single-cylinder four-stroke engine producing 55 Nm, it excels at quick city navigation and tight technical riding. Known for its responsive handling and genuine dirt bike heritage, it appeals to experienced riders wanting genuine fun over pure performance.

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2003

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General information
Category	Super motard
Year	2003
Model	KTM 640 LC4 Supermoto
Engine and Transmission Specifications
Transmission type,final drive	Chain
Gearbox	5-speed
Cooling system	Liquid
Fuel system	Carburettor
Valves per cylinder	4
Bore x stroke	102.0 x 80.0 mm (4.0 x 3.1 inches)
Compression	11.5:1
Torque	55.00 Nm (5.6 kgf-m or 40.6 ft.lbs) @ 5500
Power	54.80
Engine type	Single cylinder, four-stroke
Capacity:	625.00 ccm (38.14 cubic inches)

Brakes, suspension, Frame and wheels
Rear brakes diameter	220 mm (8.7 inches)
Rear brakes	Single disc
Front brakes diameter	320 mm (12.6 inches)
Front brakes	Single disc
Rear tyre dimensions	160/60-17
Front tyre dimensions	120/70-17
Rear suspension travel	310 mm (12.2 inches)
Rear suspension	WP - Monoshock
Front suspension travel	265 mm (10.4 inches)
Front suspension	WP-USD 48 MA

Physical measures and capacities
Reserve fuel capacity	2.50 litres (0.66 gallons)
Fuel capacity	12.00 litres (3.17 gallons)
Wheelbase	1,510 mm (59.4 inches)
Ground clearance	290 mm (11.4 inches)
Seat height	910 mm (35.8 inches) If adjustable, lowest setting.
Power/weight ratio	0.3678 HP/kg
Dry weight	149.0 kg (328.5 pounds)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

53.6 hp

Peak Power

4.8s

0-60 mph

Best For

Track70%

City78%

Cornering93%

Daily Riding50%

Touring28%

Passenger20%

Rider Profile

Best For	Best suited to experienced riders who are comfortable with a tall, light, punchy single-cylinder bike that demands active input.
Purpose	Built for sharp, flickable cornering fun on twisty tarmac and supermoto-style thrills rather than covering long distances.
Rider Fit	The tall 910mm seat height and top-heavy single-cylinder vibration mean shorter or less fit riders may find it tiring and intimidating at a stop.
Character	A raw, mechanical, big-single supermoto that rewards aggressive, engaged riding with immediate steering response and strong midrange torque.
Not Ideal For	Not a good fit for riders wanting plush comfort, pillion practicality, or effortless long-haul touring capability.

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

Rider Fit Visualizer

2003 KTM 640 LC4 Supermoto Rider Ergonomics Assessment

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Inseam (optional)

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Feet:

At 910mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2003 KTM 640 LC4 Supermoto, with a relaxed knee angle of around 150 degrees and a forward-leaning 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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