Oldtimer picture gallery. Motorcycles. NSU-251OSL.
(data for Wehrmacht version)
Years of production: 1936 - 1942, (Wehrmacht version since 1938)
Overall amount: ? units
Engine: 10.5hp/5000rpm, 1-cyl, 4-stroke OHV, 242cc
Bore/Stroke: 64/75 mm
Compression ratio: 6.8:1
Carburettor: Amal M 74/426, Bing, Graetzin KE20; 20 mm
Length: 200cm, width: 76cm, saddle height: 68cm
Wheelbase: 1285mm, clearance: 11cm
Gearbox: 4 speed foot
Parallelogram front fork
Weight: 136 kg (aluminium block)
Maximal speed: 95 km/h
Tyres: 3.00-19 inches
Fuel tank capacity: 11.5 L
Fuel consumption: 2.6 L/100km
The first 75k picture is from "Internationale Motorrad Typenschau" book by Dr. Ing. Gerhard Seidel, Germany, WK Verlag Bad Salzuflen.
The rest pictures are from a book called "German Motorcycles in World War II" By Schiffer Military, written by Stefan Knittel.
Thanks a lot to Egon Admann from Long Island, NY, USA.
If you have to add, ask or correct me, you are welcome to write me by E-mail Contact. Andrei Bogomolov.
Entrance GALLERY NSU motorcycles Sale Links
Last updated 6 VI 1998.