| General information |
|---|
| Model: | Triumph T120 Bonneville |
| Year: | 1959 |
| Category: | Sport |
| Rating: | Do you know this bike?
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| Engine and transmission |
|---|
| Displacement: | 649.00 ccm (39.60 cubic inches) |
| Engine type: | Twin, four-stroke |
| Power: | 46.00 HP (33.6 kW)) @ 6700 RPM |
| Top speed: | 185.0 km/h (115.0 mph) |
| Bore x stroke: | 71.0 x 82.0 mm (2.8 x 3.2 inches) |
| Fuel system: | Carburettor. Amal monobloc carburettor |
| Fuel control: | Overhead Valves (OHV) |
| Ignition: | Lucas magneto |
| Cooling system: | Air |
| Gearbox: | 4-speed |
Transmission type,
final drive: | Chain |
| Clutch: | Multi-plate, wet |
| Chassis, suspension, brakes and wheels |
|---|
| Frame type: | Brazed lug, rigid |
| Front suspension: | Telescopic fork. |
| Rear suspension: | Twin shocks. Girlings 100 lb/ft spring tension, adjustable pre-set. |
| Front tyre: | 3.25-19 |
| Rear tyre: | 3.50-19 |
| Front brakes: | Expanding brake (drum brake) |
| Front brakes diameter: | 203 mm (8.0 inches) |
| Rear brakes: | Expanding brake (drum brake) |
| Rear brakes diameter: | 178 mm (7.0 inches) |
| Seat: | Dual seat |
| Physical measures and capacities |
|---|
| Dry weight: | 183.0 kg (403.4 pounds) |
| Power/weight ratio: | 0.2514 HP/kg |
| Seat height: | 770 mm (30.3 inches) If adjustable, lowest setting. |
| Ground clearance: | 127 mm (5.0 inches) |
| Wheelbase: | 1,400 mm (55.1 inches) |
| Fuel capacity: | 15.14 litres (4.00 gallons) |
| Other specifications |
|---|
| Color options: | Pearl Grey/Tangerine Orange |
| Further information |
|---|
| Ask questions | Join the 59 Triumph T120 Bonneville discussion group or the general Triumph discussion group. |
| Related bikes | List related bikes for comparison of specs. |
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