| Attribute | Moto Guzzi Regolarita 250 1959 × | NSU 251 SS 1927 × |
|---|---|---|
| General | ||
| Production from (year) | 1959 | 1927 |
| Make | Moto Guzzi | NSU |
| Model | Moto Guzzi Regolarita 250 | NSU 251 SS |
| Category | Sport | Sport |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Fuel system | Carburettor. DellÓrto | Carburettor |
| Displacement (cm³) | 247 | 247 |
| Power (kw) | 12.4 | 7.3 |
| Cooling system | Air | Air |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 68 | 63 |
| Stroke (mm) | 68 | 80 |
| Gearbox | 5-speed | 3-speed |
| Fuel control | Overhead Valves (OHV) | - |
| Clutch | Wet multiplate | - |
| Chassis | ||
| Front suspension | Telescopic fork | - |
| Rear suspension | Dual chocks | - |
| Front brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Front tyre | 2.50-18 | 2.50-26 |
| Rear tyre | 3.00-17 | 2.50-26 |
| Seat | Single Seat | Single |
| Wheels | - | Spoked |
| Other | ||
| Starter | Kick | Kick |
| Dimensions | ||
| Wheelbase (mm) | 1,314 | 1,330 |
| Dry weight (kg) | 101 | 110 |
| Power/weight ratio | 0.1228 | 0.0664 |
| Performance | ||
| Top speed (km/h) | 132 | 100 |
| Fuel capacity (l) | 12 | 7.75 |