Triumph Bonneville 50th: history, specs, pictures

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Triumph Bonneville 50th
Manufacturer
Production 2009
Engine
twin, four-stroke
Bore / Stroke 90.0mm x 68.0mm
Horsepower 65.58 HP (48.9 KW) @ 7500RPM
Torque 50.89 ft/lbs (69.0 Nm) @ 5800RPM
Fuel System injection. multipoint sequential electronic fuel injection with sai
Transmission Gear box: 5-speed

Final Drive: chain

Clutch: wet. multi-plate
Suspension Front: 41mm forks. 120mm travel
Rear: chromed spring twin shocks with adjustable preload. 100mm rear wheel travel
Brakes Front: single disc
Rear: single disc
Front Tire 100/70-r17
Rear Tire 130/80-r17
Wheelbase 59.06 inches (1500 mm)
Length 84.41 inches (2144 mm)
Height 43.31 inches (1100 mm)
Seat Height 29.57 inches (751 mm)
Weight 447.54 pounds (203.0 Kg) (dry),
Fuel Capacity 4.23 Gallon (16.00 Liters)
Manuals Service Manual


The Triumph Bonneville 50th was a twin, four-stroke standard produced by Triumph in 2009. Max torque was 50.89 ft/lbs (69.0 Nm) @ 5800 RPM. Claimed horsepower was 65.58 HP (48.9 KW) @ 7500 RPM.

Engine[edit | edit source]

The engine was a air cooled twin, four-stroke. A 90.0mm bore x 68.0mm stroke result in a displacement of just 865.0 cubic centimeters. Fuel was supplied via a double overhead cams/twin cam (dohc).

Drive[edit | edit source]

The bike has a 5-speed transmission. Power was moderated via the wet. multi-plate.

Chassis[edit | edit source]

It came with a 100/70-r17 front tire and a 130/80-r17 rear tire. Stopping was achieved via single disc in the front and a single disc in the rear. The front suspension was a 41mm forks. 120mm travel while the rear was equipped with a chromed spring twin shocks with adjustable preload. 100mm rear wheel travel. The Bonneville 50th was fitted with a 4.23 Gallon (16.00 Liters) fuel tank. The bike weighed just 447.54 pounds (203.0 Kg). The wheelbase was 59.06 inches (1500 mm) long.