Triumph Speed Four - 2006 Specifications and Reviews
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.
General information | |
| Category | Naked bike |
| Year | 2006 |
| Model | Triumph Speed Four |
| | |
Engine and Transmission Specifications | |
| Clutch | Wet. multi-plate |
| Transmission type,final drive | Chain |
| Gearbox | 6-speed |
| Cooling system | Liquid |
| Ignition | Digital - inductive type - via electronic engine management system |
| Fuel control | DOHC |
| Fuel system | Injection. Multipoint sequential electronic fuel injection with forced air induction |
| Bore x stroke | 68.0 x 41.3 mm (2.7 x 1.6 inches) |
| Compression | 12.5:1 |
| Torque | 68.00 Nm (6.9 kgf-m or 50.2 ft.lbs) @ 10500 |
| Power | 98.00 |
| Engine type | In-line four, four-stroke |
| Capacity: | 599.00 ccm (36.55 cubic inches) |
Brakes, suspension, Frame and wheels | |
| Rear brakes diameter | 220 mm (8.7 inches) |
| Rear brakes | Single disc |
| Front brakes diameter | 310 mm (12.2 inches) |
| Front brakes | Double disc |
| Rear tyre dimensions | 180/55-ZR17 |
| Front tyre dimensions | 120/70-ZR17 |
| Rear suspension | Monoshock with adjustable preload. rebound and compression damping |
| Front suspension | 43 mm forks with dual rate springs and adjustable preload. compression and rebound damping |
| Rake (fork angle) | 24.6° |
| Frame type | Aluminium beam perimeter |
Physical measures and capacities | |
| Wheelbase | 1,395 mm (54.9 inches) |
| Overall width | 690 mm (27.2 inches) |
| Overall length | 2,165 mm (85.2 inches) |
| Overall height | 1,110 mm (43.7 inches) |
| Seat height | 810 mm (31.9 inches) If adjustable, lowest setting. |
| Power/weight ratio | 0.5765 HP/kg |
| Dry weight | 170.0 kg (374.8 pounds) |
Other specs | |
| Color options | Jet Black, Racing Yellow, Tornado Red |






































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