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NSU 4 Hp

Make Model	NSU 4 Hp
Year	1920 - 25
Engine	V-Twin cylinder, 4 stroke
Capacity	498 cc / 30.4 cub in
Cooling	Air cooled
Ignition	Magneto
Starting	Starter crank with flywheel
Max Power	6.8 kW / 6.5 hp @ 3000 rpm
Final Drive	Belt
Font Suspension	Advanced spring loaded fork
Rear Suspension	Dual coil springs
Rear Brake	Adjustable expansion brake
Frame	Steel, integrated open frame with engine as integral component
Top Speed	80 km/h / 50 mph

Derived from the 3.5 hp military model, the 4 hp 2-cylinder of 1920 was belt-driven. It was fitted with modern foot rests, was painted black, had a green tank and all other polished parts were now in matt nickel. The first post-war 2-cylinder vehicle had an advanced front suspension fork, which greatly improved ride comfort. The wheel brake was replaced by an adjustable expansion brake. It also had a starter mechanism featuring a rearward acting starter crank with freewheel.