Supermotos
2004KTM 640 Duke II Yellow/black
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The 2004 KTM 640 Duke II is a lightweight super motard designed for agile urban riding and spirited backroad exploration. Its single-cylinder engine delivers strong low-end torque ideal for quick acceleration and playful handling. Known for its minimalist styling and accessible performance, it appeals to riders seeking a fun, manageable naked bike with genuine character.
- Capacity
- 625.0 ccm
- Engine
- Single
- Gearbox
- 5-speed
- Dry weight
- 149.0 kg
- Seat height
- 900 mm
- Power
- 53.6 HP (39.4 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- A street supermoto built for hooligan fun-carving canyons, slicing city traffic, wheelies and backroad hustling on sticky 17-inch road rubber.
- Built for
- Rowdy, minimalist, and full of attitude-a punchy thumper that thrives on flicking through corners and pulling stunts rather than covering miles.
- Not ideal for
- Not for tourers, two-up riders, short inseams, or anyone wanting smooth refinement, long-range comfort, or true off-road ability.
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
- 60.0 Nm (6.1 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
- 1460 mm
- Overall width
- 640 mm
- Seat height
- 900 mm
- Dry weight
- 149.0 kg
- Fuel capacity
- 12.00 litres
- Ground clearance
- 270 mm
Chassis & suspension
- Frame
- Chromium-molybdenum, power-coated
- Front suspension
- WP-USD 43 MA
- Rear suspension
- WP - Monoshock
- Trail
- 64 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
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 Duke II Yellow/black?
The 2004 KTM 640 Duke II Yellow/black has a Capacity of 625.0 ccm (38.14 cubic inches).
What engine power does the KTM 640 Duke II Yellow/black have?
The 2004 KTM 640 Duke II Yellow/black has a Power of 53.6 HP (39.4 kW).
How many gears does the KTM 640 Duke II Yellow/black have?
The 2004 KTM 640 Duke II Yellow/black has a Gearbox of 5-speed.
What is the torque of the KTM 640 Duke II Yellow/black?
The 2004 KTM 640 Duke II Yellow/black has a Torque of 60.0 Nm (6.1 kgf-m or 44.3 ft.lbs).
How much does the KTM 640 Duke II Yellow/black weigh?
The 2004 KTM 640 Duke II Yellow/black has a Dry weight of 149.0 kg (328.5 pounds).
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