| MODEL | NSU 501 SS 1931 - 1934 |
| Year | 1931 - 1934 |
| Engine Type | Single cylinder, upright shaft, 4 stroke, OHC |
| Displacement / Capacity | 494 cc / 30.1 cu in |
| Bore X Stroke | 80 x 99 mm |
| Compression Ratio | 6:1 |
| Cooling System | Air/Oil cooled |
| Max Power | 14.7 kW / 20 hp @ 4800 rpm |
| Max Torque | — |
| Ignition | Magneto |
| Induction | — |
| Start System | Kick start |
| TRANSMISSION SPECS | |
| Lubrication | Gear driven oil pump |
| Gear Box | 3 Speed, pedal shift |
| Clutch | — |
| Final Drive | Chain in oil bath |
| CHASSIS SPECS | |
| Frame | Closed frame |
| Front Suspension | Spring loaded fork |
| Rear Suspension | — |
| Front Brakes | — |
| Rear Brakes | Internal shoe |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 165 kg / 364 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 19 in, high pressure |
| Rear Tyre | 19 in, high pressure |
| FUEL SYSTEM | |
| Fuel Capacity | — |
| Fuel Consumption | — |
| Top Speed | 100 km/h / 62 mph |
The 501 SS Super Sport was built with almost no change from 1931 to 1934. It was the first production design by Walter Moore, who came to NSU from Norton and brought the upright-shaft overhead-cam single layout. It had twin exhaust ports, a pedal gearshift and a closed frame.
