Supermotos
2003KTM 640 Duke
30 fields on record
The 2003 KTM 640 Duke is a lightweight supermoto designed for riders seeking playful agility and everyday versatility. Its 625cc single-cylinder engine delivers strong low-end torque ideal for urban riding and weekend adventures. Known for responsive handling and minimalist styling, it appeals to riders valuing character over raw power.
- Capacity
- 625.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 5-speed
- Dry weight
- 149.0 kg
- Seat height
- 900 mm
- Power
- 54.8 HP (40.3 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built as a supermotard, it excels at flickable, aggressive cornering on twisty roads and tight urban streets rather than outright top speed.
- Built for
- Raw, punchy, and lightweight, it delivers a visceral single-cylinder thump with sharp, go-kart-like handling.
- Not ideal for
- It is not a good fit for riders seeking long-distance comfort, wind protection, or smooth two-up touring capability.
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
- 54.8 HP (40.3 kW)
- Torque
- 60.0 Nm (6.1 kgf-m) @ 5500 RPM
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.3678 HP/kg (dry)
- Bore x stroke
- 101.0 x 78.0 mm
- Compression
- 11.5:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Valves per cylinder
- 4
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
Dimensions & weight
- Wheelbase
- 1460 mm
- Seat height
- 900 mm
- Dry weight
- 149.0 kg
- Fuel capacity
- 12.00 litres
- Ground clearance
- 270 mm
- Reserve fuel capacity
- 2.50 litres
Chassis & suspension
- Front suspension
- WP-USD 43 MA
- Rear suspension
- WP - Monoshock
- Front wheel travel
- 140 mm
- Rear wheel travel
- 170 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
- 160/70-17
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?
The 2003 KTM 640 Duke has a Capacity of 625.0 ccm (38.14 cubic inches).
What engine power does the KTM 640 Duke have?
The 2003 KTM 640 Duke has a Power of 54.8 HP (40.3 kW).
How many gears does the KTM 640 Duke have?
The 2003 KTM 640 Duke has a Gearbox of 5-speed.
What is the torque of the KTM 640 Duke?
The 2003 KTM 640 Duke has a Torque of 60.0 Nm (6.1 kgf-m or 44.3 ft.lbs) @ 5500 RPM.
How much does the KTM 640 Duke weigh?
The 2003 KTM 640 Duke has a Dry weight of 149.0 kg (328.5 pounds).
Shop this bike
Affiliate linksWe may earn a commission from qualifying eBay or Amazon purchases made through these links. As an Amazon Associate I earn from qualifying purchases.
Please log in or register if you'd like to leave a comment.
Own one? Add it to My Garage and write an owner review with an Owner badge.