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Naked Motorcycles

2004Triumph Bonneville T100

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The 2004 Triumph Bonneville T100 is a modern classic that appeals to riders seeking authentic British styling with accessible performance. Its 790cc air-cooled twin delivers smooth, manageable power ideal for both commuting and weekend rides. The bike is celebrated for reviving the iconic Bonneville nameplate with retro charm and reliable, user-friendly character.

Capacity: 790.0 ccm
Engine: Parallel Twin, four-stroke
Gearbox: 5-speed
Dry weight: 205.0 kg
Seat height: 775 mm
Power: 61.0 HP (44.9 kW)

⇄ Compare with another bike ＋ Add to garage All model years ⚠ Recalls listed (1)

Other years 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail15%

Cornering65%

City riding72%

Daily riding75%

Touring55%

Two-up55%

Track25%

Best for: Built primarily as a classic-styled roadster for relaxed commuting, weekend rides, and casual cruising rather than outright performance.
Built for: Offers a timeless, retro British roadster feel with smooth, torquey power delivery and easygoing, confidence-inspiring manners.
Not ideal for: Not the right choice for riders seeking aggressive sportbike speed, track-day performance, or serious 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?

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Your height

Inseam (optional)

Units

At 775mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2004 Triumph Bonneville T100, with a relaxed knee angle of around 120 degrees and a forward-leaning riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 751-820 mm — Middle Ground →

Find bikes that fit your height →

Full specifications

Engine

Capacity: 790.0 ccm
Power: 61.0 HP (44.9 kW)
Torque: 60.0 Nm (6.1 kgf-m)
Engine type: Parallel Twin, four-stroke
Power/weight ratio: 0.2976 HP/kg (dry)
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

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
Fuel capacity: 16.00 litres

Chassis & suspension

Frame: Tubular steel cradle
Front suspension: 41mm forks
Rear suspension: Chromed spring twin shocks with adjustable preloads
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	2004	2010	2015	2021	2026
Capacity	790 cc	865 cc	865 cc	900 cc	900 cc
Dry weight	205 kg	205 kg	205 kg	213 kg	—
Seat height	775 mm	775 mm	775 mm	790 mm	790 mm
Fuel capacity	16 L	16 L	15.9 L	14.5 L	—

Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.

Safety Recalls

⚠ 1 recall may apply

SUSPENSION:REAROct 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.

These recalls cover some 2004 bikes of this model. Whether one applies to a specific bike, and whether the repair has already been done, depends on its VIN — check your VIN with NHTSA or ask a dealer.

Source: NHTSA. View all Triumph recalls →