| Attribute | Velocette Venom 1959 × | NSU 501 SS 1928 × |
|---|---|---|
| General | ||
| Production from (year) | 1959 | 1928 |
| Make | Velocette | NSU |
| Model | Velocette Venom | NSU 501 SS |
| Category | Allround | Sport |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Fuel system | Carburettor. Amal | Carburettor |
| Displacement (cm³) | 499 | 494 |
| Power (kw) | 24.8 | 14.6 |
| Cooling system | Air | Air |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 86 | 80 |
| Stroke (mm) | 86 | 99 |
| Fuel control | Overhead Valves (OHV) | - |
| Ignition | Belt driven dynamo | - |
| Clutch | Dry-three plate | - |
| Lubrication system | Wet sump | - |
| Compression | 8.0:1 | - |
| Chassis | ||
| Front suspension | Telescopic | - |
| Rear suspension | Swingarm with coil-over shocks | - |
| Front brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Front tyre | 3.25-19 | 2.50-26 |
| Rear tyre | 3.25-19 | 3.25-26 |
| Seat | Dual seat | Single |
| Wheels | - | Spoked |
| Rake (fork angle) (degree) | 27 | - |
| Other | ||
| Starter | Kick | Kick |
| Dimensions | ||
| Wheelbase (mm) | 1,391 | 1,390 |
| Dry weight (kg) | 177 | 158 |
| Power/weight ratio | 0.1401 | 0.0924 |
| Performance | ||
| Top speed (km/h) | 161 | 125 |
| Reserve fuel capacity (l) | 13.6 | - |
| Fuel capacity (l) | - | 11 |