| Attribute | NSU Max 1951 × | NSU 251 OSL WH 1941 × |
|---|---|---|
| General | ||
| Production from (year) | 1951 | 1941 |
| Make | NSU | NSU |
| Model | NSU Max | NSU 251 OSL WH |
| Category | Sport | Allround |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Fuel system | Carburettor. Bing | Carburettor. Amal |
| Displacement (cm³) | 247 | 242 |
| Power (kw) | 10.9 | 7.7 |
| Cooling system | Air | Air |
| Transmission type,final drive | Chain | - |
| Bore (mm) | 69 | 64 |
| Stroke (mm) | 66 | 75 |
| Gearbox | 4-speed | - |
| Chassis | ||
| Front brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Frame type | - | Steel |
| Front tyre | 3.25-19 | 3-19 |
| Rear tyre | 3.25-19 | 3-19 |
| Seat | Single | Single |
| Wheels | Spoked | Spoked |
| Other | ||
| Starter | Kick | - |
| Dimensions | ||
| Dry weight (kg) | 150 | 144 |
| Power/weight ratio | 0.0727 | 0.0535 |
| Overall height (mm) | 990 | 950 |
| Overall length (mm) | 2,030 | 2,040 |
| Overall width (mm) | 670 | 780 |
| Performance | ||
| Top speed (km/h) | 115 | 95 |
| Fuel capacity (l) | - | 11 |