Triumph T120 Bonneville: history, specs, pictures
| Triumph T120 Bonneville | |
| Manufacturer | |
|---|---|
| Also called | T120 C Bonneville, T120 R Bonneville |
| Production | 1959 - 1962 |
| Engine | twin, four-stroke |
| Bore / Stroke | 71.0mm x 82.0mm |
| Top Speed | 115 mph (185 km/h) |
| Horsepower | 45.06 HP (33.6 KW) @ 6500RPM |
| Fuel System | carburetor. amal monobloc carburetor |
| Ignition | lucas k2f auto-advance magneto |
| Transmission | Gear box: 4-speed Final Drive: chain |
| Suspension | Front: telescopic fork, hydraulic damping. Rear: twin shocks. girlings 100 lb/ft spring tension, adjustable pre-set. |
| Brakes | Front: expanding brake (drum brake) Rear: expanding brake (drum brake) |
| Front Tire | 3.25-18 |
| Rear Tire | 4.00-18 |
| Wheelbase | 55.12 inches (1400 mm) |
| Seat Height | 30.31 inches (770 mm) |
| Weight | 392.42 pounds (178.0 Kg) (dry), |
| Fuel Capacity | 4.0 Gallon (15.14 Liters) |
| Manuals | Service Manual |
The Triumph T120 C Bonneville was a twin, four-stroke standard produced by Triumph between 1959 and 1962. It could reach a top speed of 115 mph (185 km/h). Claimed horsepower was 45.06 HP (33.6 KW) @ 6500 RPM.
Engine[edit | edit source]
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).
Drive[edit | edit source]
The bike has a 4-speed transmission. Power was moderated via the multi-plate, wet.
Chassis[edit | edit source]
It came with a 3.25-18 front tire and a 4.00-18 rear tire. Stopping was achieved via expanding brake (drum brake) 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 twin shocks. girlings 100 lb/ft spring tension, adjustable pre-set.. The T120 C Bonneville was fitted with a 4.0 Gallon (15.14 Liters) fuel tank. The bike weighed just 392.42 pounds (178.0 Kg). The wheelbase was 55.12 inches (1400 mm) long.