2009 Triumph Bonneville SE Technical Analysis & Specification Breakdown
At the heart of the 2009 Triumph Bonneville SE classic motorcycle, Triumph utilizes a 865 cc (52.8 cu in) air-cooled twin, four-stroke layout. In factory specification, peak output is rated at 68 HP (49.6 kW) at 7,500 rpm while maximum torque reaches 69 Nm (50.9 lb-ft) at 5,800 rpm, transferring power to the rear wheel through a 5-speed gearbox. With a specific output of 78.6 HP per liter and a 1,700 rpm working window between peak torque (5,800 rpm) and peak power (7,500 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the Bonneville SE measures 203 kg (448 lbs) dry, translating to a power-to-weight ratio of 0.33 HP/kg (2.99 kg per horsepower). Rider ergonomics and chassis geometry center around a 751 mm (29.6 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,454 mm (57.2 in) wheelbase engineered for balanced agility and highway composure. The 16-liter (4.2 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Triumph archive, this model family spans 4 indexed model years from 2009 to 2012, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
78.6 HP/L
Power-to-Weight
0.33 HP/kg (2.99 kg/HP)
Power Band Window
5,800–7,500 rpm
Standover Height
751 mm (29.6 in)
Engine
Displacement865.0 ccm (52.78 cubic inches)
Engine TypeTwin, four-stroke
Engine DetailsTwin, four-stroke
Power68.0 HP (49.6 kW)) @ 7500 RPM
Torque69.0 Nm (7.0 kgf-m or 50.9 ft.lbs) @ 5800 RPM
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
