Comparison of Triumph T120 R Bonneville 1960 and Triumph T120 Bonneville 1959 [S]ave
| Attribute |  Triumph T120 R Bonneville 1960 × |  Triumph T120 Bonneville 1959 × |
|---|---|---|
| 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 |
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