Naked Motorcycles
2003Triumph Bonneville
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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.
- Capacity
- 790.0 ccm
- Engine
- Parallel Twin, four-stroke
- Gearbox
- 5-speed
- Dry weight
- 205.0 kg
- Seat height
- 775 mm
- Power
- 62.0 HP (45.6 kW) @ 7400 RPM
What’s new for the 2003 Triumph Bonneville
vs the 2002| Spec | 2002 | 2003 |
|---|---|---|
| Power | 61.0 HP (44.9 kW) @ 7400 RPM | 62.0 HP (45.6 kW) @ 7400 RPM |
Other years
1986
1987
1988
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Best suited to relaxed street riding, café-racer style cruising, and short scenic rides rather than outright performance.
- Built for
- A classic-styled retro roadster that prioritizes timeless looks, mellow torque, and easygoing manners over speed or sharpness.
- Not ideal for
- Not a good fit for riders wanting high-speed touring, aggressive cornering performance, or any 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
- 790.0 ccm
- Power
- 62.0 HP (45.6 kW) @ 7400 RPM
- Torque
- 60.0 Nm (6.1 kgf-m)
- Engine type
- Parallel Twin, four-stroke
- Power/weight ratio
- 0.3024 HP/kg
- Bore x stroke
- 86.0 x 68.0 mm
- Compression
- 9.2:1
- Cooling system
- Air
- Fuel system
- Carburettor
- Starting
- Electric
- Ignition
- Digital - inductive type
- Valves per cylinder
- 4
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet. multi-plate
Dimensions & weight
- Wheelbase
- 1493 mm
- Overall length
- 2250 mm
- Overall width
- 860 mm
- Overall height
- 1105 mm
- Seat height
- 775 mm
- Dry weight
- 205.0 kg
- Wet weight
- 226.0 kg
- Fuel capacity
- 16.00 litres
Chassis & suspension
- Frame
- Tubular steel cradle
- Front suspension
- 41mm forks
- Rear suspension
- Chromed spring twin shocks with adjustable preload
- Front wheel travel
- 120 mm
- Rear wheel travel
- 105 mm
- Rake (fork angle)
- 28.0°
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 310 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 255 mm
- Front tyre
- 100/90-R 19
- Rear tyre
- 130/80-R 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 | 1986 | 2002 | 2003 | 2007 | 2011 | 2016 |
|---|---|---|---|---|---|---|
| Capacity | 744.00 ccm (45.40 cubic inches) | 790.00 ccm (48.21 cubic inches) | 790.00 ccm (48.21 cubic inches) | 865.00 ccm (52.78 cubic inches) | 865.00 ccm (52.78 cubic inches) | — |
| Dry weight | — | 205.0 kg (451.9 pounds) | 205.0 kg (451.9 pounds) | 204.6 kg (451.0 pounds) | — | 209.0 kg (460.8 pounds) |
| Seat height | — | 775 mm (30.5 inches) | 775 mm (30.5 inches) | 775 mm (30.5 inches) | 739 mm (29.1 inches) | 740 mm (29.1 inches) |
| Fuel capacity | 11.00 litres (2.91 gallons) | 16.00 litres (4.23 gallons) | 16.00 litres (4.23 gallons) | 16.65 litres (4.40 gallons) | 15.90 litres (4.20 gallons) | 16.00 litres (4.23 gallons) |
| Color options | — | — | — | Aluminium Silver, Jet Black, Goodwood Green,(Bonneville Black Special Edition with black covers) | Phantom Black. Crystal White | Lunar Silver, Phantom Black, Blue/white |
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 Bonneville?
The 2003 Triumph Bonneville has a Capacity of 790.0 ccm (48.21 cubic inches).
What engine power does the Triumph Bonneville have?
The 2003 Triumph Bonneville has a Power of 62.0 HP (45.6 kW) @ 7400 RPM.
How many gears does the Triumph Bonneville have?
The 2003 Triumph Bonneville has a Gearbox of 5-speed.
What is the torque of the Triumph Bonneville?
The 2003 Triumph Bonneville has a Torque of 60.0 Nm (6.1 kgf-m or 44.3 ft.lbs).
How much does the Triumph Bonneville weigh?
The 2003 Triumph Bonneville has a Dry weight of 205.0 kg (451.9 pounds).
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