Triumph Bonneville T120R Roadster: history, specs, pictures



The Triumph Bonneville T120R Roadster was a twin, four-stroke standard produced by Triumph between 1963 and 1969. It could reach a top speed of 115 mph (185 km/h). Claimed horsepower was 48.01 HP (35.8 KW) @ 6200 RPM.

Triumph Bonneville T120R Roadster
Manufacturer
Production 1963 - 1969
Engine
twin, four-stroke
Bore / Stroke 71.0mm x 82.0mm
Top Speed 115 mph (185 km/h)
Horsepower 48.01 HP (35.8 KW) @ 6200RPM
Fuel System carburetor. amal concentric carburetor
Ignition lucas
Transmission Gear box: 4-speed

Final Drive: chain

Clutch: multi-plate, wet
Suspension Front: telescopic fork, hydraulic damping.
Rear: swing arm, 2 girling dampers
Brakes Front: expanding brake (drum brake). twin leading shoe
Rear: expanding brake (drum brake)
Front Tire 3.25-19
Rear Tire 4.00-18
Wheelbase 55.24 inches (1403 mm)
Seat Height 30.51 inches (775 mm)
Weight 363.76 pounds (165.0 Kg) (dry),
Fuel Capacity 2.5 Gallon (9.46 Liters)
Manuals Service Manual

EngineEdit

The engine was a air cooled twin, four-stroke. A 71.0mm bore x 82.0mm stroke result in a displacement of just 649.0 cubic centimeters. Fuel was supplied via a overhead valves (ohv).

DriveEdit

The bike has a 4-speed transmission. Power was moderated via the multi-plate, wet.

ChassisEdit

It came with a 3.25-19 front tire and a 4.00-18 rear tire. Stopping was achieved via expanding brake (drum brake). twin leading shoe in the front and a expanding brake (drum brake) in the rear. The front suspension was a telescopic fork, hydraulic damping. while the rear was equipped with a swing arm, 2 girling dampers. The Bonneville T120R Roadster was fitted with a 2.5 Gallon (9.46 Liters) fuel tank. The bike weighed just 363.76 pounds (165.0 Kg). The wheelbase was 55.24 inches (1403 mm) long.