Supermotos
2004KTM 640 LC4 SM Supermoto
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The 2004 KTM 640 LC4 SM is a lightweight supermoto designed for agile street and track riding. Its single-cylinder liquid-cooled engine delivers punchy mid-range torque, making it ideal for riders seeking nimble handling and accessible performance. Best known for its versatile nature, it excels in urban environments and tight cornering.
- Capacity
- 625.0 ccm
- Engine
- Single
- Gearbox
- 5-speed
- Dry weight
- 149.0 kg
- Seat height
- 910 mm
- Power
- 53.6 HP (39.4 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built as a supermoto for flicking through tight corners and urban streets with razor-sharp handling rather than for outright speed or distance.
- Built for
- Raw, single-cylinder character with strong torque pulses and a lively, engaged feel that thrives on rider input.
- Not ideal for
- Not a good fit for those wanting plush comfort, pillion-friendly touring, or a relaxed, low-effort ride.
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
- 53.6 HP (39.4 kW)
- Torque
- 55.0 Nm (5.6 kgf-m)
- Engine type
- Single
- Power/weight ratio
- 0.3597 HP/kg (dry)
- Bore x stroke
- 101.0 x 78.0 mm
- Compression
- 11.7:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
Dimensions & weight
- Wheelbase
- 1510 mm
- Overall width
- 640 mm
- Seat height
- 910 mm
- Dry weight
- 149.0 kg
- Fuel capacity
- 12.00 litres
- Ground clearance
- 290 mm
Chassis & suspension
- Frame
- Chromium-molybdenum, power-coated
- Front suspension
- WP-USD 48 MA
- Rear suspension
- WP - Monoshock
- Trail
- 63 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
Other
- Color options
- Orange, Black
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 640 LC4 SM Supermoto?
The 2004 KTM 640 LC4 SM Supermoto has a Capacity of 625.0 ccm (38.14 cubic inches).
What engine power does the KTM 640 LC4 SM Supermoto have?
The 2004 KTM 640 LC4 SM Supermoto has a Power of 53.6 HP (39.4 kW).
How many gears does the KTM 640 LC4 SM Supermoto have?
The 2004 KTM 640 LC4 SM Supermoto has a Gearbox of 5-speed.
What is the torque of the KTM 640 LC4 SM Supermoto?
The 2004 KTM 640 LC4 SM Supermoto has a Torque of 55.0 Nm (5.6 kgf-m or 40.6 ft.lbs).
How much does the KTM 640 LC4 SM Supermoto weigh?
The 2004 KTM 640 LC4 SM Supermoto has a Dry weight of 149.0 kg (328.5 pounds).
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Same category, weighted similarity
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