Naked Motorcycles
2006Triumph Speed Four
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The 2006 Triumph Speed Four is a middleweight naked bike that appeals to riders seeking nimble, everyday performance without excessive power. Its 599cc four-cylinder engine delivers 98 horsepower with a characterful soundtrack, making it equally suited to spirited riding and commuting. Known for its agile handling and engaging nature, the Speed Four remains a respected choice for riders valuing balance over raw performance.
- Capacity
- 599.0 ccm
- Engine
- In-line four, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 170.0 kg
- Seat height
- 810 mm
- Power
- 98.0 HP (72.1 kW) @ 11750 RPM
What’s new for the 2006 Triumph Speed Four
vs the 2005| Spec | 2005 | 2006 |
|---|---|---|
| Torque | 68.0 Nm (6.9 kgf-m or 50.2 ft.lbs) | 68.0 Nm (6.9 kgf-m or 50.2 ft.lbs) @ 10500 RPM |
| Front suspension | 43mm forks with dual rate springs and adjustable preload, compression and rebound damping | 43 mm forks with dual rate springs and adjustable preload. compression and rebound damping |
| Rear suspension | Monoshock with adjustable preload, rebound and compression damping | Monoshock with adjustable preload. rebound and compression damping |
| Front brakes | Double disc. 4-piston calipers | Double disc |
| Rear brakes | Single disc. 2-piston calipers | Single disc |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built for spirited road riding and canyon carving, blending a screaming supersport-derived engine with an upright naked-bike stance.
- Built for
- A fiery, revvy little naked bike that loves being thrashed near redline and rewards aggressive, playful riding.
- Not ideal for
- Not ideal for riders seeking long-distance comfort, passenger-friendly touring, or 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
- 599.0 ccm
- Power
- 98.0 HP (72.1 kW) @ 11750 RPM
- Torque
- 68.0 Nm (6.9 kgf-m) @ 10500 RPM
- Engine type
- In-line four, four-stroke
- Power/weight ratio
- 0.5765 HP/kg (dry)
- Bore x stroke
- 68.0 x 41.3 mm
- Compression
- 12.5:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Ignition
- Digital - inductive type - via electronic engine management system
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet. multi-plate
Dimensions & weight
- Wheelbase
- 1395 mm
- Overall length
- 2165 mm
- Overall width
- 690 mm
- Overall height
- 1110 mm
- Seat height
- 810 mm
- Dry weight
- 170.0 kg
- Fuel capacity
- 16.60 litres
Chassis & suspension
- Frame
- Aluminium beam perimeter
- Front suspension
- 43 mm forks with dual rate springs and adjustable preload. compression and rebound damping
- Rear suspension
- Monoshock with adjustable preload. rebound and compression damping
- Rake (fork angle)
- 24.6°
Brakes & wheels
- Front brakes
- Double disc
- Front brakes diameter
- 310 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 220 mm
- Front tyre
- 120/70-ZR17
- Rear tyre
- 180/55-ZR17
Other
- Color options
- Jet Black, Racing Yellow, Tornado Red
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 | 2003 | 2004 | 2005 | 2006 |
|---|---|---|---|---|
| Capacity | 599 cc | 599 cc | 599 cc | 599 cc |
| Dry weight | 170 kg | 170 kg | 170 kg | 170 kg |
| Seat height | 810 mm | 810 mm | 810 mm | 810 mm |
| Fuel capacity | 18 L | 18 L | 16.6 L | 16.6 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 Triumph Speed Four?
The 2006 Triumph Speed Four has a Capacity of 599.0 ccm (36.55 cubic inches).
What engine power does the Triumph Speed Four have?
The 2006 Triumph Speed Four has a Power of 98.0 HP (72.1 kW) @ 11750 RPM.
How many gears does the Triumph Speed Four have?
The 2006 Triumph Speed Four has a Gearbox of 6-speed.
What is the torque of the Triumph Speed Four?
The 2006 Triumph Speed Four has a Torque of 68.0 Nm (6.9 kgf-m or 50.2 ft.lbs) @ 10500 RPM.
How much does the Triumph Speed Four weigh?
The 2006 Triumph Speed Four has a Dry weight of 170.0 kg (374.8 pounds).
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