Comparison of BSA A 50 Royal Star 1965 and Triumph Speed Twin 5T 1966 [S]ave
| Attribute |  BSA A 50 Royal Star 1965 × |  Triumph Speed Twin 5T 1966 × |
|---|---|---|
| General | ||
| Production from (year) | 1965 | 1966 |
| Make | BSA | Triumph |
| Model | BSA A 50 Royal Star | Triumph Speed Twin 5T |
| Category | Naked bike | Sport |
| Engine and transmission | ||
| Engine type | Twin, four-stroke | Twin, four-stroke |
| Fuel system | Carburettor | Carburettor. Amal |
| Displacement (cm³) | 500 | 498 |
| Power (kw) | 24.1 | 19.7 |
| Cooling system | Air | - |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 65.5 | - |
| Stroke (mm) | 74 | - |
| Fuel control | Overhead Valves (OHV) | Overhead Valves (OHV) |
| Clutch | Wet multiplate | - |
| Lubrication system | - | Dry sump |
| Compression | 7.5:1 | - |
| Chassis | ||
| Front suspension | Hydralic telescopic forks | Telescopic |
| Rear suspension | Twin shock | Swingarm with coil-over shocks |
| Front brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Frame type | Single cradle | - |
| Seat | Dual seat | Dual seat |
| Dimensions | ||
| Wheelbase (mm) | 1,391 | 1,400 |
| Performance | ||
| Fuel capacity (l) | 18 | - |
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