NSU Motosulm

Make Model	NSU Motosulm
Year	1933
Engine	Single cylinder, 2 stroke, 3 channel timing piston
Capacity	63 cc / 3.8 cub in
Bore x Stroke	45 x 40 mm
Cooling	Air/Oil cooled
Clutch	Multi friction
Ignition	Magneto generator placed on the flywheel
Carburetor	Amal/Grätzin carburettor
Compression Ratio	1:5.5
Transmission	Direct power transmission through a system of fixed gears
Final Drive	Chain
Frame	Steel, round tube
Tires	26 x 2.00 balloon
Rims	Recessed SS
Wet Weight	42 kg / 92.6 lbs
Tank Capacity	1.8 l / 0.4 US gal
Average Consumption	1.7 l/100 km / 58.8 km/l / 138 US mpg
Top Speed	35 km/h / 21.7 mph

NSU attempted to counter the steep decline in motorcycle sales by designing an inexpensive 2-stroke engine. During the economic crisis, it was a brilliant marketing move when NSU put out the first mass-production motorcycle in 1931. It came onto the market as a cheap, simple and resilient means of transport. A robust vehicle was available for very little money that could stand up to everyday use and which was sold as a gent's version with a cross bar and as a ladies' version.