What category is the 1999 KTM LC4 640 Enduro?

The 1999 KTM LC4 640 Enduro has a Category of Enduro / offroad.

What is the engine size of the 1999 KTM LC4 640 Enduro?

The 1999 KTM LC4 640 Enduro has a Capacity: of 625.00 ccm (38.14 cubic inches).

What type of engine does the 1999 KTM LC4 640 Enduro have?

The 1999 KTM LC4 640 Enduro has a Engine type of Single cylinder.

What is the engine power of the 1999 KTM LC4 640 Enduro?

The 1999 KTM LC4 640 Enduro has a Power of 49.00.

Is the 1999 KTM LC4 640 Enduro air cooled or liquid cooled?

The 1999 KTM LC4 640 Enduro has a Cooling system of Liquid.

How many gears does the 1999 KTM LC4 640 Enduro have?

The 1999 KTM LC4 640 Enduro has a Gearbox of 5-speed.

How much does the 1999 KTM LC4 640 Enduro weigh?

The 1999 KTM LC4 640 Enduro has a Weight incl. oil, gas, etc of 158.0 kg (348.3 pounds).

What is the seat height of the 1999 KTM LC4 640 Enduro?

The 1999 KTM LC4 640 Enduro has a Seat height of 930 mm (36.6 inches) If adjustable, lowest setting..

What is the top speed of the 1999 KTM LC4 640 Enduro?

The 1999 KTM LC4 640 Enduro has a Top speed of 168.0 km/h (104.4 mph).

KTM LC4 640 Enduro - 1999 Specifications and Reviews

The 1999 KTM LC4 640 Enduro is a lightweight single-cylinder offroad bike ideal for adventure and enduro riders seeking reliability and simplicity. Its liquid-cooled 625cc engine delivers strong low-end torque perfect for technical terrain, while the compact 158kg chassis excels in tight trail conditions. Known for legendary durability and ease of maintenance, it remains a favorite among long-distance adventure riders.

⇄ Compare against another bike 📅 All Years

1999

❮❯

Add/Upload pictures for this motorcycle

General information
Category	Enduro / offroad
Year	1999
Model	KTM LC4 640 Enduro

Engine and Transmission Specifications
Transmission typefinal drive	Chain
Gearbox	5-speed
Cooling system	Liquid
Starter	Electric & kick
Valves per cylinder	4
Bore x stroke	101.0 x 78.0 mm (4.0 x 3.1 inches)
Compression	11.0:1
Power	49.00
Stroke	4
Engine type	Single cylinder
Capacity:	625.00 ccm (38.14 cubic inches)

Physical measures and capacities
Wheelbase	1,510 mm (59.4 inches)
Seat height	930 mm (36.6 inches) If adjustable, lowest setting.
Front percentage of weight	46.2
Weight incl. oil, gas, etc	158.0 kg (348.3 pounds)
KTM LC4 640 Enduro dimensions and frame
Rear brakes diameter	220 mm (8.7 inches)
Rear brakes	Single disc
Front brakes diameter	300 mm (11.8 inches)
Front brakes	Single disc
Rear tyre dimensions	140/80-18
Front tyre dimensions	90/90-21
Rear suspension travel	320 mm (12.6 inches)
Front suspension travel	280 mm (11.0 inches)
Speed and acceleration
60-140 km/h (37-87 mph), highest gear	13.300 seconds
0-100 km/h (0-62 mph)	4.700 seconds
Top speed	168.0 km/h (104.4 mph)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Fuel consumption pr. 10 km (6.2 miles)	0.63 litres (0.17 gallons)
Fuel capacity	12.00 litres (3.17 gallons)

Performance Profile & Rider Fit

49 hp

Peak Power

4.4s

0-60 mph

104.4 mph

Top Speed

Best For

Track30%

City45%

Cornering75%

Daily Riding40%

Touring35%

Passenger20%

Rider Profile

Best For	Best suited to experienced riders comfortable with a tall, torquey, kick-lively big-bore single that demands active input.
Purpose	Built primarily for serious off-road enduro riding, with enough road manners for occasional dual-sport commuting.
Rider Fit	The tall 930mm seat height and 158kg weight favor taller or more physically confident riders who can manage the bike standing on rough terrain.
Character	A raw, punchy thumper that rewards aggressive, engaged riding with sharp handling and strong low-end grunt.
Not Ideal For	Not ideal for beginners, shorter riders, or anyone wanting plush comfort on long highway trips.

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

Rider Fit Visualizer

1999 KTM LC4 640 Enduro Rider Ergonomics Assessment

Your height

Inseam (optional)

Units

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 930mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 1999 KTM LC4 640 Enduro, 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.

Find bikes that fit your height →