Adventure Motorcycles
2006KTM 640 Adventure
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The 2006 KTM 640 Adventure is a capable single-cylinder enduro bike designed for adventure riders seeking lightweight, fuel-efficient off-road performance. Its 625cc four-stroke engine delivers strong low-end torque ideal for rough terrain and long-distance exploration. Known for reliability and easy maintenance, the 640 Adventure remains a popular choice for dual-sport touring and backcountry riding.
- Capacity
- 625.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 5-speed
- Dry weight
- 158.0 kg
- Seat height
- 945 mm
- Power
- 53.6 HP (39.4 kW) @ 7000 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- A rugged, big-bore enduro built for long-distance off-road adventure, desert rallies, and mixed-terrain touring rather than outright speed.
- Built for
- A torquey, no-nonsense thumper with rally-bred DNA, favoring simplicity, durability, and long-travel suspension over refinement or outright power.
- Not ideal for
- Not ideal for shorter riders, pure pavement commuters wanting plush comfort, or anyone seeking sportbike acceleration and top speed.
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) @ 7000 RPM
- EPA Certificate No.
- 6KTXC0.62RXC-002
- EPA CO Emissions
- 6.0 CO g/km
- Torque
- 55.0 Nm (5.6 kgf-m) @ 5500 RPM
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.3392 HP/kg (dry)
- Bore x stroke
- 101.0 x 78.0 mm
- Compression
- 11.7:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Electric & kick
- Ignition
- Kokusan DC-CDI
- Aspiration
- Naturally aspirated
- Valves per cylinder
- 4
- Lubrication system
- Pressure lubrication with 2 Eaton pumps
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet multi-disc clutch, operated hydraulically
Dimensions & weight
- Wheelbase
- 1510 mm
- Overall width
- 640 mm
- Seat height
- 945 mm
- Dry weight
- 158.0 kg
- Fuel capacity
- 25.50 litres
- Ground clearance
- 315 mm
Chassis & suspension
- Frame
- Chromium-molybdenum, powder-coated
- Front suspension
- WP-USD 48 mm
- Rear suspension
- WP - Monoshock
- Front wheel travel
- 300 mm
- Rear wheel travel
- 335 mm
- Rake (fork angle)
- 27.5°
- Trail
- 124 mm
Brakes & wheels
- Front brakes
- Double 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.
What changed, year to year
Differences highlighted| Specification | 2006 | 2007 |
|---|---|---|
| Capacity | 625 cc | 625 cc |
| Dry weight | 158 kg | 158 kg |
| Seat height | 945 mm | 945 mm |
| Fuel capacity | 25.5 L | 25.5 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the KTM 640 Adventure?
The 2006 KTM 640 Adventure has a Capacity of 625.0 ccm (38.14 cubic inches).
What engine power does the KTM 640 Adventure have?
The 2006 KTM 640 Adventure has a Power of 53.6 HP (39.4 kW) @ 7000 RPM.
How many gears does the KTM 640 Adventure have?
The 2006 KTM 640 Adventure has a Gearbox of 5-speed.
What is the torque of the KTM 640 Adventure?
The 2006 KTM 640 Adventure has a Torque of 55.0 Nm (5.6 kgf-m or 40.6 ft.lbs) @ 5500 RPM.
How much does the KTM 640 Adventure weigh?
The 2006 KTM 640 Adventure has a Dry weight of 158.0 kg (348.3 pounds).
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