30 June. Tuesday 2026
Triumph Bonneville - 2003 Specifications and Reviews
The 2003 Triumph Bonneville is a retro-styled 790cc twin that appeals to riders seeking classic British character with modern reliability. Known for its distinctive parallel-twin engine delivering smooth mid-range torque and timeless styling, it excels as an accessible everyday roadster for enthusiasts valuing heritage and manageable performance over raw speed.
General information | |
| Category | Classic |
| Year | 2003 |
| Model | Triumph Bonneville |
Engine and Transmission Specifications | |
| Transmission typefinal drive | Chain |
| Gearbox | 5-speed |
| Cooling system | Air |
| Fuel control | DOHC |
| Fuel system | Carburettor |
| Bore x stroke | 86.0 x 68.0 mm (3.4 x 2.7 inches) |
| Compression | 9.2:1 |
| Torque | 60.00 |
| Power | 62.00 |
| Stroke | 4 |
| Engine type | Twin |
| Capacity: | 790.00 ccm (48.21 cubic inches) |
| | |
Physical measures and capacities | |
| Wheelbase | 1,493 mm (58.8 inches) |
| Overall width | 860 mm (33.9 inches) |
| Overall length | 2,250 mm (88.6 inches) |
| Overall height | 1,105 mm (43.5 inches) |
| Seat height | 775 mm (30.5 inches) If adjustable, lowest setting. |
| Dry weight | 205.0 kg (451.9 pounds) |
Triumph Bonneville dimensions and frame | |
| Rear brakes diameter | 255 mm (10.0 inches) |
| Rear brakes | Single disc |
| Front brakes diameter | 310 mm (12.2 inches) |
| Front brakes | Single disc |
| Rear tyre dimensions | 130/80-R 17 |
| Front tyre dimensions | 100/90-R 19 |
| | |
Speed and acceleration | |
| Power/weight ratio | 0.3024 HP/kg |
Other specs | |
| Fuel capacity | 16.00 litres (4.23 gallons) |
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