Triumph Bonneville SE - 2012 Specifications and Reviews

The 2012 Triumph Bonneville SE is a classic air-cooled twin that appeals to riders seeking authentic retro styling with modern reliability. Known for its distinctive 360-degree firing interval, torquey 865cc engine, and lightweight handling, it excels as a nimble, easy-to-ride middleweight. The fuel-injected powerplant delivers responsive performance suitable for both commuting and spirited weekend rides.

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General information

CategoryClassic
Year2012
ModelTriumph Bonneville SE

Engine and Transmission Specifications

Exhaust systemStainless steel headers, twin chromed upswept mufflers
Greenhouse gases109.0 CO
Fuel consumption4.70 litres/100 km (21.3 km/l or 50.05 mpg)
DrivelineX ring chain. Primary drive: Gear.
ClutchWet. multi-plate
Transmission type,final driveChain
Gearbox5-speed
Cooling systemAir
IgnitionDigital-inductive type via engine management system
Fuel controlDOHC
Fuel systemInjection. Multipoint sequential electronic fuel injection with SAI
Bore x stroke90.0 x 68.0 mm (3.5 x 2.7 inches)
Compression9.2:1
Torque67.80 Nm (6.9 kgf-m or 50.0 ft.lbs) @ 5800
Power66.00
Engine details360 degree firing interval
Engine typeTwin, four-stroke
Capacity:865.00 ccm (52.78 cubic inches)
 
 

Brakes, suspension, Frame and wheels

WheelsCast aluminum alloy
Rear brakes diameter255 mm (10.0 inches)
Rear brakesSingle disc
Front brakes diameter310 mm (12.2 inches)
Front brakesSingle disc
Rear tyre dimensions130/80-R17
Front tyre dimensions110/70-R17
Rear suspensionKayaba chromed spring twin shocks with adjustable preload. 100mm rear wheel travel
Front suspensionKayaba 41mm forks. 120mm travel
Rake (fork angle)27.0°
Frame typeTubular steel cradle. Swing arm: Engine.
 
 

Physical measures and capacities

Oil capacity4.50 litres (0.30 quarts)
Fuel capacity16.00 litres (4.23 gallons)
Wheelbase1,488 mm (58.6 inches)
Overall width790 mm (31.1 inches)
Overall length2,113 mm (83.2 inches)
Overall height1,130 mm (44.5 inches)
Seat height739 mm (29.1 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc225.0 kg (496.0 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Color optionsPhantom Black. Intense Orange and Phantom Black. Pacific Blue and Fusion White
Factory warranty2 yeras
InstrumentsAnalogue speedometer and tachometer with odometer, clock and trip information
StarterElectric

Performance Profile & Rider Fit

66 hp
Peak Power
5.8s
0-60 mph

Best For

Track15%
City65%
Cornering50%
Daily Riding68%
Touring45%
Passenger45%

Rider Profile

Best ForWell suited to new-to-intermediate riders thanks to its modest power delivery and predictable, classic-feeling chassis.
PurposeBuilt for relaxed retro-styled riding, short commutes, and weekend cruising rather than outright performance.
Rider FitA manageable low seat height and moderate 225kg weight make it accessible for riders of average and shorter stature.
CharacterCharming, air-cooled parallel-twin soul with vintage looks, a soft power curve, and easygoing manners rather than aggression.
Not Ideal ForNot the right choice for riders seeking high-speed touring capability, off-road ability, or sport-bike cornering performance.

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

Rider Fit Visualizer

2012 Triumph Bonneville SE Rider Ergonomics Assessment

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Feet:

At 739mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2012 Triumph Bonneville SE, with a moderate knee angle of around 115 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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