| Attribute | Simson S51 B1-4 × | Tomos Revival 50 × |
|---|---|---|
| General | ||
| Production from (year) | 1980 | 2008 |
| Make | Simson | Tomos |
| Model | Simson S51 B1-4 | Tomos Revival 50 |
| Category | Allround | Sport |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Fuel system | Carburettor | - |
| Displacement (cm³) | 49.8 | 49 |
| Power (kw) | 2.7 | - |
| Cooling system | Air | Air |
| Transmission type,final drive | Chain | - |
| Gearbox | 4-speed | Automatic |
| Ignition | Electronic | - |
| Chassis | ||
| Front brakes | Expanding brake (drum brake) | Single disc |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Frame type | Steel Frame | - |
| Front tyre | - | 2.05-17 |
| Rear tyre | - | 3.25-16 |
| Other | ||
| Starter | Kick | Electric |
| Color options |
|
|
| Dimensions | ||
| Dry weight (kg) | 78 | 65 |
| Power/weight ratio | 0.0344 | - |
| Performance | ||
| Top speed (km/h) | 60 | 45 |
| Reserve fuel capacity (l) | 0.7 | 0.5 |
| Fuel capacity (l) | 8.7 | 3 |