Triumph Bonneville T100 - 2008 Specifications and Reviews

The 2008 Triumph Bonneville T100 is a classic air-cooled twin that appeals to riders seeking authentic retro styling with modern reliability. Its 865cc engine delivers smooth, accessible power ideal for both commuting and weekend rides. Known for its timeless design and balanced performance, it suits riders who value character and heritage over raw speed.

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General information

CategoryClassic
Year2008
ModelTriumph Bonneville T100

Engine and Transmission Specifications

ClutchWet. multi-plate
Gearbox5-speed
Cooling systemAir
StarterElectric
IgnitionDigital - inductive type
Fuel controlDOHC
Fuel systemCarburettor. Multipoint sequential electronic fuel injection
Bore x stroke90.0 x 68.0 mm (3.5 x 2.7 inches)
Compression9.2:1
Torque52.00
Power66.00
Stroke4
Engine typeTwin
Capacity:865.00 ccm (52.78 cubic inches)
 
 

Physical measures and capacities

Wheelbase1,501 mm (59.1 inches)
Overall width841 mm (33.1 inches)
Overall length2,230 mm (87.8 inches)
Overall height1,100 mm (43.3 inches)
Seat height775 mm (30.5 inches) If adjustable, lowest setting.
Dry weight204.6 kg (451.0 pounds)

Triumph Bonneville T100 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 dimensions130/80-17
Front tyre dimensions100/90-19
Rear suspensionChromed spring twin shocks with adjustable preload
Front suspension41mm forks
Trail110 mm (4.3 inches)
Rake (fork angle)28.0°
Frame typeTubular steel cradle
 
 

Speed and acceleration

Power/weight ratio0.3226 HP/kg

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Color optionsJet Black/FusionWhite., Jet Black/Tornado Red. Claret/Aluminum Silver. Forest Green/New England White
Fuel capacity16.65 litres (4.40 gallons)

Performance Profile & Rider Fit

Best For

Track25%
City72%
Cornering65%
Daily Riding75%
Touring55%
Passenger55%

Rider Profile

Best ForWell suited to newer and returning riders thanks to its approachable parallel-twin character and predictable, classic-styled handling.
PurposeBuilt primarily as a classic-styled roadster for relaxed commuting, weekend rides, and casual cruising rather than outright performance.
Rider FitA moderate, upright seating position and manageable width and height make it accessible to riders of average and smaller stature.
CharacterOffers a timeless, retro British roadster feel with smooth, torquey power delivery and easygoing, confidence-inspiring manners.
Not Ideal ForNot the right choice for riders seeking aggressive sportbike speed, track-day performance, or serious off-road capability.

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

Rider Fit Visualizer

2008 Triumph Bonneville T100 Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 775mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2008 Triumph Bonneville T100, 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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