Comparison of Sunbeam S7 500 1949 and Sunbeam S7 500 1948 [S]ave
| Attribute |  Sunbeam S7 500 1949 × | Sunbeam S7 500 1948 × |
|---|---|---|
| General | ||
| Production from (year) | 1949 | 1948 |
| Make | Sunbeam | Sunbeam |
| Model | Sunbeam S7 500 | Sunbeam S7 500 |
| Category | Sport touring | Sport touring |
| Engine and transmission | ||
| Engine type | Twin, four-stroke | Twin, four-stroke |
| Fuel system | Carburettor | Carburettor |
| Displacement (cm³) | 487 | 487 |
| Power (kw) | 17.5 | 17.5 |
| Cooling system | Oil & air | Oil & air |
| Transmission type,final drive | Shaft drive (cardan) | Shaft drive (cardan) |
| Bore (mm) | 70 | 70 |
| Stroke (mm) | 63.5 | 63.5 |
| Fuel control | Overhead Cams (OHC) | Overhead Cams (OHC) |
| Clutch | Dry singleplate | Dry singleplate |
| Lubrication system | Wet sump | Wet sump |
| Compression | 6.5:1 | 6.5:1 |
| Chassis | ||
| Front suspension | Telescopic | Telescopic |
| Rear suspension | Plungers | Plungers |
| Front brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Diameter (mm) | 200 | 200 |
| Frame type | Twin cradle | Twin cradle |
| Front tyre | 4.50-16 | 4.50-16 |
| Rear tyre | 4.50-16 | 4.50-16 |
| Seat | Single | Single |
| Wheels | Spoked | Spoked |
| Other | ||
| Starter | Kick | Kick |
| Color options |
|
|
| Dimensions | ||
| Wheelbase (mm) | 1,400 | 1,400 |
| Dry weight (kg) | 194 | 194 |
| Power/weight ratio | 0.0902 | 0.0902 |
| Performance | ||
| Top speed (km/h) | 121 | 121 |
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