NSU 251 S
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| NSU 251 S | |
| Manufacturer | |
|---|---|
| Production | 1926 - 29 |
| Engine | Single cylinder, 4 stroke, overhead valve |
| Top Speed | 100 km/h / 62 mph |
| Ignition | Magneto |
| Transmission | 3 Speed |
| Frame | Steel, integrated open frame with engine as integral component |
| Weight | |
| Manuals | Service Manual |
It could reach a top speed of 100 km/h / 62 mph.
Engine[edit | edit source]
The engine was a Air cooled cooled Single cylinder, 4 stroke, overhead valve.
Photos[edit | edit source]
Overview[edit | edit source]
NSU 251 TS
In 1926, private driver Franz Islinger from Mannheim won the
German motorcycle championship in the 250 cc class with the NSU 251 S.
Modifications to the standard 250 cc engine on the connecting rods, pistons and
cylinder converted the side-valve touring engine into an overhead-valve sports
engine producing more than 60% greater power. Other advantages were lower weight
of the oscillating control organs. That was especially important for
high-revving engines.
Below is the racing version:
| Make Model | NSU 251 TS |
|---|---|
| Year | 1926 - 29 |
| Engine Type | Single cylinder, 4 stroke, overhead valve |
| Displacement | 247 cc / 15.1 cub in |
| Cooling System | Air cooled |
| Ignition | Magneto |
| Max Power | 11.8 kW / 16 hp @ 4400 rpm |
| Transmission | 3 Speed |
| Final Drive | Chain |
| Font Suspension | Spring loaded fork |
| Frame | Steel, integrated open frame with engine as integral component |
| Top Speed | 100 km/h / 62 mph |
| Colours | Black, Black/Red |
| Source | audi.com |