Triumph Bonneville, Details and Specifications

A true roadster, the Bonneville matches classic British style to 21st century technology. This pairing of authenticity with modernity has led the Bonneville to become an icon in its own right with several famous designers creating their own signature tank designs. A cool way to cover the urban landscape; the Bonneville is agile in jammed streets and at home blatting down a leafy country lane. It has a pedigree few models can match plus a tangible credibility within today’s motorcycling world.

The Bonneville’s air-cooled, parallel twin cylinder engine offers a cubic capacity of 865cc for excellent midrange torque. 


Both pistons rise and fall together via a 360° crankshaft firing interval so the classic character of a British twin-cylinder engine is retained, whilst twin balancer shafts provide civility and refinement. 90% of peak torque is maintained from around 2500rpm through to redline providing smooth, effortless acceleration throughout the five gears.

For 2008 the Bonneville is updated with a new fuel injection system to meet forthcoming Euro 3 legislation. Cleaner running than a carburettor engine, the fuel injected engine is also easier to fire up from a cold start and runs more smoothly when cold. The cool retro styling remains uncompromised though, as the fuel injectors are cleverly concealed by throttle bodies designed to look like carburettors.

A pair of classically styled peashooter silencers handle the exhaust gases and enhance the retro feel of the bike.
The Bonneville’s low seat height (775mm/30.5inches) and similarly low centre of gravity, make it a manageable motorcycle that all riders – ranging from those with little experience to those with lots – can appreciate. The tubular steel double cradle frame and box-section swingarm are incredibly strong and the relaxed steering geometry allows composure at speed as well as ensuring the Bonnie needs only light input at the handlebars.