Supermotos
1999KTM LC4 640 Supermoto
36 fields on record
The 1999 KTM LC4 640 Supermoto is a nimble single-cylinder supermoto designed for riders seeking lightweight agility and off-road capability on street tires. Its torquey 625cc engine and compact 137kg frame excel in urban environments and mixed terrain riding. Known for excellent maneuverability and approachable performance, it appeals to intermediate riders wanting versatile fun.
- Capacity
- 625.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 5-speed
- Dry weight
- 137.0 kg
- Seat height
- 910 mm
- Power
- 49.0 HP (36.5 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built for supermoto-style thrills: aggressive cornering, tight technical roads, and playful wheelies rather than outright top-end speed.
- Built for
- A raw, mechanical, single-cylinder brute that feels alive at every twist of the throttle, with go-kart-like handling and minimal creature comforts.
- Not ideal for
- Not a good fit for riders wanting a smooth, comfortable long-distance tourer or a passenger-friendly machine.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 625.0 ccm
- Power
- 49.0 HP (36.5 kW)
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.3577 HP/kg
- Bore x stroke
- 102.0 x 80.0 mm
- Compression
- 11.5:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Electric & kick
- Ignition
- Kokusan DC-CDI
- Valves per cylinder
- 4
- Lubrication system
- Pressure lubrication with 2 oil 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
- 160.0 km/h (99.4 mph)
Dimensions & weight
- Wheelbase
- 1510 mm
- Seat height
- 910 mm
- Dry weight
- 137.0 kg
- Fuel capacity
- 12.00 litres
- Ground clearance
- 290 mm
Chassis & suspension
- Frame
- Double ground, chrommoly-steel frame, powder-coated
- Front suspension
- WP-USD 48 MA
- Rear suspension
- WP - Monoshock
- Front wheel travel
- 265 mm
- Rear wheel travel
- 310 mm
- Rake (fork angle)
- 27.0°
- Trail
- 99 mm
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 320 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 220 mm
- Front tyre
- 120/70-17
- Rear tyre
- 160/60-17
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 Supermoto?
The 1999 KTM LC4 640 Supermoto has a Capacity of 625.0 ccm (38.14 cubic inches).
What engine power does the KTM LC4 640 Supermoto have?
The 1999 KTM LC4 640 Supermoto has a Power of 49.0 HP (36.5 kW).
How many gears does the KTM LC4 640 Supermoto have?
The 1999 KTM LC4 640 Supermoto has a Gearbox of 5-speed.
How much does the KTM LC4 640 Supermoto weigh?
The 1999 KTM LC4 640 Supermoto has a Dry weight of 137.0 kg (302.0 pounds).
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