Enduro Bikes
2006Yamaha XT 660 X
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The 2006 Yamaha XT 660 X is a versatile middleweight enduro designed for riders seeking adventure on and off-road. Its air-cooled single-cylinder engine delivers accessible power and torque, making it ideal for beginners and experienced adventurers alike. Known for reliability and practical ergonomics, the XT 660 X excels as a capable dual-sport for exploration.
- Capacity
- 660.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 5-speed
- Dry weight
- 165.0 kg
- Seat height
- 865 mm
- Power
- 47.3 HP (34.8 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Designed as a supermoto-styled machine for punchy, playful riding on twisty tarmac and light urban duty rather than outright speed or long-distance touring.
- Built for
- A lively, single-cylinder torque-driven bike that feels agile, upright, and eager to flick through corners with minimal fuss.
- Not ideal for
- Not ideal for riders seeking high-speed highway cruising, plush two-up touring comfort, or serious off-road 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
- 660.0 ccm
- Power
- 47.3 HP (34.8 kW)
- Torque
- 58.4 Nm (6.0 kgf-m)
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.2867 HP/kg (dry)
- Bore x stroke
- 100.0 x 84.0 mm
- Compression
- 10.0:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- TCI
- Valves per cylinder
- 4
- Lubrication system
- Dry sump
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet, multiple-disc coil spring
Dimensions & weight
- Wheelbase
- 1505 mm
- Overall length
- 2240 mm
- Overall width
- 850 mm
- Overall height
- 1230 mm
- Seat height
- 865 mm
- Dry weight
- 165.0 kg
- Wet weight
- 189.0 kg
- Fuel capacity
- 15.00 litres
- Ground clearance
- 210 mm
- Oil capacity
- 2.90 litres
Chassis & suspension
- Frame
- Front suspension system
- Front suspension
- Telescopic fork
- Rear suspension
- Monocross with linkage
- Front wheel travel
- 225 mm
- Rear wheel travel
- 160 mm
- Rake (fork angle)
- 26.0°
- Trail
- 94 mm
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 298 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 245 mm
- Front tyre
- 90/90-21
- Rear tyre
- 130/80-17
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 | 660 cc | 660 cc |
| Dry weight | 165 kg | 177 kg |
| Seat height | 865 mm | 875 mm |
| Fuel capacity | 15 L | 15 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 Yamaha XT 660 X?
The 2006 Yamaha XT 660 X has a Capacity of 660.0 ccm (40.28 cubic inches).
What engine power does the Yamaha XT 660 X have?
The 2006 Yamaha XT 660 X has a Power of 47.3 HP (34.8 kW).
How many gears does the Yamaha XT 660 X have?
The 2006 Yamaha XT 660 X has a Gearbox of 5-speed.
What is the torque of the Yamaha XT 660 X?
The 2006 Yamaha XT 660 X has a Torque of 58.4 Nm (6.0 kgf-m or 43.1 ft.lbs).
How much does the Yamaha XT 660 X weigh?
The 2006 Yamaha XT 660 X has a Dry weight of 165.0 kg (363.8 pounds).
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