| Attribute | Moto Guzzi Dondolino 1949 × | NSU 501 SS 1931 × |
|---|---|---|
| General | ||
| Production from (year) | 1949 | 1931 |
| Make | Moto Guzzi | NSU |
| Model | Moto Guzzi Dondolino | NSU 501 SS |
| Category | Sport | Sport |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, four-stroke |
| Fuel system | Carburettor. DellÓrto SSM | Carburettor |
| Displacement (cm³) | 498 | 494 |
| Power (kw) | 24.1 | 14.6 |
| Cooling system | - | Air |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 88 | 80 |
| Stroke (mm) | 82 | 99 |
| Fuel control | Overhead Valves (OHV) | - |
| Ignition | Magneto | - |
| Chassis | ||
| Front brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Front tyre | - | 2.50-26 |
| Rear tyre | - | 3.25-26 |
| Seat | Single | Single |
| Wheels | Spoked | Spoked |
| Other | ||
| Starter | - | Kick |
| Dimensions | ||
| Dry weight (kg) | 127 | 158 |
| Power/weight ratio | 0.1898 | 0.0924 |
| Performance | ||
| Top speed (km/h) | 177 | 125 |
| Fuel capacity (l) | 19 | 11 |