| Attribute | NSU 251 SS 1927 × | NSU 201T 1930 × |
|---|---|---|
| General | ||
| Production from (year) | 1927 | 1930 |
| Make | NSU | NSU |
| Model | NSU 251 SS | NSU 201T |
| Category | Sport | Sport |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Fuel system | Carburettor | Carburettor |
| Displacement (cm³) | 247 | 199.2 |
| Power (kw) | 7.3 | 3.3 |
| Cooling system | Air | Air |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 63 | 56.5 |
| Stroke (mm) | 80 | 80 |
| Gearbox | 3-speed | 3-speed |
| 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 | 3-26 |
| Rear tyre | 2.50-26 | 3-26 |
| Seat | Single | Single spring-mounted |
| Wheels | Spoked | - |
| Other | ||
| Starter | Kick | Kick |
| Dimensions | ||
| Wheelbase (mm) | 1,330 | 1,345 |
| Dry weight (kg) | 110 | 100 |
| Power/weight ratio | 0.0664 | 0.033 |
| Performance | ||
| Top speed (km/h) | 100 | 65 |
| Fuel capacity (l) | 7.75 | 8.5 |