| MODEL | NSU 3.5 HP 1906 |
| Year | 1906 |
| Engine Type | Single cylinder, 4-stroke |
| Displacement / Capacity | 402 cc / 24.5 cu in |
| Bore X Stroke | — |
| Compression Ratio | — |
| Cooling System | Air-cooled |
| Max Power | 2.6 kW / 3.5 hp @ 3000 rpm |
| Max Torque | — |
| Ignition | Magneto |
| Induction | — |
| Start System | Bicycle-type pedal |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | — |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Steel, engine as stressed member |
| Front Suspension | — |
| Rear Suspension | — |
| Front Brakes | — |
| Rear Brakes | Hand brake |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | — |
| Rear Tyre | — |
| FUEL SYSTEM | |
| Fuel Capacity | — |
| Fuel Consumption | — |
| Top Speed | 56 km/h / 35 mph |
A larger single from the early NSU range, with a bigger bore than the 2.5 hp and more power at higher revs. It still used pedal starting and chain drive, with a hand-operated rear brake.
