NSU 4PS: history, specs, pictures
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|Production||1921 - 1925|
|Bore / Stroke||63.0mm x 80.0mm|
|Top Speed||50 mph (80 km/h)|
|Horsepower||6.3 HP (4.7 KW) @ 3000RPM|
|Transmission||Final Drive: belt
|Wheelbase||55.71 inches (1415 mm)|
|Length||86.61 inches (2200 mm)|
|Width||33.07 inches (840 mm)|
|Height||29.13 inches (740 mm)|
|Weight||264.55 pounds (120.0 Kg) (dry),|
|Fuel Capacity||2.38 Gallon (9.00 Liters)|
The NSU 4PS was a twin, four-stroke standard produced by NSU between 1921 and 1925. It could reach a top speed of 50 mph (80 km/h). Claimed horsepower was 6.3 HP (4.7 KW) @ 3000 RPM.
Engine[edit | edit source]
The engine was a air cooled twin, four-stroke. A 63.0mm bore x 80.0mm stroke result in a displacement of just 498.0 cubic centimeters.
Chassis[edit | edit source]
It came with a 2.5-26 front tire and a 2.5-26 rear tire. The 4PS was fitted with a 2.38 Gallon (9.00 Liters) fuel tank. The bike weighed just 264.55 pounds (120.0 Kg). The wheelbase was 55.71 inches (1415 mm) long.