Triumph Bonneville - 2004 Specifications and Reviews

The 2004 Triumph Bonneville is a classic air-cooled parallel twin that appeals to riders seeking authentic retro styling with modern reliability. Known for its lightweight 790cc engine delivering smooth mid-range torque and nimble handling, it excels as an accessible middleweight for both experienced riders and enthusiasts returning to motorcycling.

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General information

CategoryClassic
Year2004
ModelTriumph Bonneville
 
 

Engine and Transmission Specifications

Gearbox5-speed
Cooling systemAir
Fuel controlDOHC
Fuel systemCarburettor
Bore x stroke86.0 x 68.0 mm (3.4 x 2.7 inches)
Compression9.2:1
Torque60.00
Power61.00
Stroke4
Engine typeTwin
Capacity:790.00 ccm (48.21 cubic inches)

Physical measures and capacities

Wheelbase1,493 mm (58.8 inches)
Overall width860 mm (33.9 inches)
Overall length2,250 mm (88.6 inches)
Overall height1,105 mm (43.5 inches)
Seat height775 mm (30.5 inches) If adjustable, lowest setting.
Dry weight205.0 kg (451.9 pounds)
 
 

Triumph Bonneville dimensions and frame

Rear brakes diameter255 mm (10.0 inches)
Rear brakesSingle disc
Front brakes diameter310 mm (12.2 inches)
Front brakesSingle disc
Rear tyre dimensions130/80-R 17
Front tyre dimensions100/90-R 19

Speed and acceleration

Power/weight ratio0.2976 HP/kg

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Fuel capacity16.00 litres (4.23 gallons)

Performance Profile & Rider Fit

68 hp
Peak Power
5.8s
0-60 mph

Best For

Track20%
City65%
Cornering55%
Daily Riding68%
Touring45%
Passenger40%

Rider Profile

Best ForSuits new-to-intermediate riders thanks to modest power delivery and forgiving, predictable handling.
PurposeBest suited to relaxed street riding, café-racer style cruising, and short scenic rides rather than outright performance.
Rider FitA moderate curb weight and low, accessible seat height make it manageable for riders of average build and shorter inseams.
CharacterA classic-styled retro roadster that prioritizes timeless looks, mellow torque, and easygoing manners over speed or sharpness.
Not Ideal ForNot a good fit for riders wanting high-speed touring, aggressive cornering performance, or any off-road capability.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2004 Triumph Bonneville Rider Ergonomics Assessment

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Feet:

At 775mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2004 Triumph Bonneville, with a relaxed knee angle of around 120 degrees and a forward-leaning riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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⚠ Safety Recalls (1)

SUSPENSION:REAR Oct 2004 · 04V496000

ON CERTAIN MOTORCYCLES, THERE MAY BE A POOR WELD ON THE REAR SUSPENSION UNIT BODY.

Risk: FAILURE OF THE REAR SUSPENSION UNIT MAY COMPROMISE THE STABILITY OF THE MOTORCYCLE WHICH COULD RESULT IN A CRASH.

Remedy: DEALERS WILL REPLACE THE REAR SUSPENSION UNITS. THE RECALL BEGAN ON DECEMBER 20, 2004. OWNERS SHOULD CONTACT TRIUMPH AT 1-678-854-2010.

Source: NHTSA. View all Triumph recalls →

Rider Reviews

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