Attribute | Triumph T120 R Bonneville 1960 × | Triumph T120 Bonneville 1959 × |
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General | ||
Production from (year) | 1960 | 1959 |
Make | Triumph | Triumph |
Model | Triumph T120 R Bonneville | Triumph T120 Bonneville |
Category | Sport | Sport |
Engine and transmission | ||
Engine type | Twin, four-stroke | Twin, four-stroke |
Fuel system | Carburettor. Amal monobloc carburettor | Carburettor. Amal monobloc carburettor |
Displacement (cm³) | 649 | 649 |
Power (kw) | 33.6 | 33.6 |
Cooling system | Air | Air |
Transmission type,final drive | Chain | Chain |
Bore (mm) | 71 | 71 |
Stroke (mm) | 82 | 82 |
Gearbox | 4-speed | 4-speed |
Fuel control | Overhead Valves (OHV) | Overhead Valves (OHV) |
Ignition | Lucas K2F auto-advance Magneto | Lucas magneto |
Clutch | Multi-plate, wet | Multi-plate, wet |
Chassis | ||
Front suspension | Telescopic fork, hydraulic damping. | Telescopic fork. |
Rear suspension | Twin shocks. Girlings 100 lb/ft spring tension, adjustable pre-set. | Twin shocks. Girlings 100 lb/ft spring tension, adjustable pre-set. |
Front brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
Diameter (mm) | 178 | 178 |
Frame type | Duplex frame | Brazed lug, rigid |
Front tyre | 3.25-18 | 3.25-19 |
Rear tyre | 4.00-18 | 3.50-19 |
Seat | Dual seat | Dual seat |
Other | ||
Color options |
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Dimensions | ||
Wheelbase (mm) | 1,400 | 1,400 |
Dry weight (kg) | 178 | 183 |
Power/weight ratio | 0.1888 | 0.1836 |
Seat height (mm) | 770 | 770 |
Ground clearance (mm) | 127 | 127 |
Performance | ||
Top speed (km/h) | 185 | 185 |
Fuel capacity (l) | 15.14 | 15.14 |