Enduro Bikes
1999KTM LC4 640 Enduro
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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.
- Capacity
- 625.0 ccm
- Engine
- Single
- Gearbox
- 5-speed
- Dry weight
- 149.0 kg
- Seat height
- 930 mm
- Power
- 55.0 HP (41.0 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built primarily for serious off-road enduro riding, with enough road manners for occasional dual-sport commuting.
- Built for
- 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.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 625.0 ccm
- Power
- 55.0 HP (41.0 kW)
- Engine type
- Single
- Power/weight ratio
- 0.3691 HP/kg (dry)
- Bore x stroke
- 101.0 x 78.0 mm
- Compression
- 11.0:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Electric & kick
- Ignition
- Kokusan DC-CDI
- Valves per cylinder
- 4
- Lubrication system
- Pressure lubrication with 2 Eaton pumps
- Torque
- Not on record - add it
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet multi-disc clutch, operated hydraulically
Performance
- Top speed
- 168.0 km/h (104.4 mph)
Dimensions & weight
- Wheelbase
- 1510 mm
- Overall width
- 640 mm
- Seat height
- 930 mm
- Dry weight
- 149.0 kg
- Wet weight
- 158.0 kg
- Fuel capacity
- 12.00 litres
- Ground clearance
- 310 mm
- Front percentage of weight
- 46.2
Chassis & suspension
- Frame
- Chromium-molybdenum, power-coated
- Front suspension
- WP-USD 43 MA
- Rear suspension
- WP - Monoshock
- Front wheel travel
- 280 mm
- Rear wheel travel
- 320 mm
- Rake (fork angle)
- 28.0°
- Trail
- 128 mm
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 300 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 220 mm
- Front tyre
- 90/90-21
- Rear tyre
- 140/80-18
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
Rider Reviews
Common questions
What is the engine size of the KTM LC4 640 Enduro?
The 1999 KTM LC4 640 Enduro has a Capacity of 625.0 ccm (38.14 cubic inches).
What engine power does the KTM LC4 640 Enduro have?
The 1999 KTM LC4 640 Enduro has a Power of 55.0 HP (41.0 kW).
How many gears does the KTM LC4 640 Enduro have?
The 1999 KTM LC4 640 Enduro has a Gearbox of 5-speed.
How much does the KTM LC4 640 Enduro weigh?
The 1999 KTM LC4 640 Enduro has a Dry weight of 149.0 kg (328.5 pounds).
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