Comparison of Sunbeam S7 500 1956 and Zündapp KKS 500 Kardan Sport 1938 [S]ave
| Attribute |  Zündapp KKS 500 Kardan Sport 1938 × |  Sunbeam S7 500 1956 × |
|---|---|---|
| General | ||
| Production from (year) | 1938 | 1956 |
| Make | Zündapp | Sunbeam |
| Model | Zündapp KKS 500 Kardan Sport | Sunbeam S7 500 |
| Category | Sport | Sport touring |
| Engine and transmission | ||
| Engine type | Two cylinder boxer, four-stroke | Twin, four-stroke |
| Fuel system | Carburettor. Amal | Carburettor |
| Displacement (cm³) | 498 | 487 |
| Power (kw) | 17.5 | 17.5 |
| Cooling system | Air | Oil & air |
| Transmission type,final drive | Shaft drive (cardan) | Shaft drive (cardan) |
| Bore (mm) | 66 | 70 |
| Stroke (mm) | 66.6 | 63.5 |
| Fuel control | - | Overhead Cams (OHC) |
| Clutch | - | Dry singleplate |
| Lubrication system | - | Wet sump |
| Compression | - | 6.5:1 |
| Chassis | ||
| Front suspension | - | Telescopic |
| Rear suspension | Rigid | Plungers |
| Front brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Frame type | - | Twin cradle |
| Front tyre | 3.50-19 | 4.50-16 |
| Rear tyre | 3.50-19 | 4.50-16 |
| Seat | Single | Single |
| Wheels | Spoked | Spoked |
| Other | ||
| Starter | Kick | Kick |
| Color options | - |
|
| Dimensions | ||
| Dry weight (kg) | 175 | 194 |
| Power/weight ratio | 0.1 | 0.0902 |
| Performance | ||
| Top speed (km/h) | 140 | 121 |
| Fuel capacity (l) | 12.5 | - |
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