Triumph Bonneville

Triumph has kept the ‘Bonnie’ as true to its 50’s roots. Traditional parallel twin power is provided by the 790cc Bonneville engine. A 360-degree crankshaft reproduces the classic engine beat of a British twin, where both pistons rise and fall together.

The engine is fed by twin 36mm carburettors with throttle-position sensors, electrically-heated, while the exhaust system employs secondary air-injection to keep emissions low and exits via traditional twin ‘peashooter’ silencers. The unmistakably Triumph triangular engine cover and left-side clutch case remain brushed and lacquered for 2003.

Modern rubber is mounted on a 19 inch front and 17 inch rear wheel, and with disc brakes front and rear. In fetchingly simple single-tone tank colours for 2003.

Triumph Bonneville - 2003 - Specifications

Engine - Air-cooled, DOHC, parallel twin, 360° firing interval
Capacity - 790cc
Bore/Stroke - 86 x 68mm
Compression Ratio 9.2:1
Induction - Twin carburettors, with throttle position sensor and electric carburettor heaters
Ignition - Digital, inductive type
Claimed Power - 61hp @ 7,400rpm
Claimed Torque - 60Nm @ 3,500rpm
Final Drive - X ring chain
Clutch - Wet, multi-plate
Gearbox - 5 speed
Frame - Tubular steel cradle
Swingarm - Twin-sided, tubular steel
Front Rim - Spoked, 19 x 2.5in
Rear Rim - Spoked, 17 x 3.5in
Front Tyre - 100/90 R 19
Rear Tyre - 130/80 R 17
Front Suspension - 41mm forks
Rear Suspension - Chrome spring twin shocks with adjustable preload
Front Brake - Single 310mm disc, 2 piston caliper
Rear Brake - Single 255mm disc, 2 piston caliper
Length - 2250mm (88.6in)
Width - 860mm (33.8in)
Height - 1,105mm (43.5in)
Seat Height - 775mm (30.5in)
Wheelbase - 1,493mm (58.8in)
Rake/Trail - 29°/117mm
Dry Weight - 205kg (451lb)
Fuel Capacity - 16 litres
Colours - Jet Black - Cardinal Red
RRP - $13,390
Available - April, 2003