Simson S51: history, specs, pictures

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Simson S51
Manufacturer Simson
Also called S51 B1-4, S51 n
Production 1980 - 1986
Engine single cylinder, two-stroke
Bore / Stroke 38.0mm x 44.0mm
Top speed 50 mph (80 km/h)
Horse Power 3.89 HP (2.9 KW) @ 5500RPM
Fuel system carburettor
Ignition type electronic
Battery 9.0:1
Transmission Gear box: 1-speed
Final Drive: chain
Brakes Front: expanding brake (drum brake)
Rear: expanding brake (drum brake)
Weight 189.6 pounds (86.0 Kg)
Fuel capacity 2.3 Gallon (8.70 Liters)
Fuel consumption 2.00 litres/100 km (50.0 km/l or 117.61 mpg)
Manuals Service Manual
Tech Specs · Brochures · Reviews · Ads · Videos

The Simson S51 n was a single cylinder, two-stroke standard produced by Simson between 1980 and 1986. It could reach a top speed of 50 mph (80 km/h). Claimed horsepower was 3.89 HP (2.9 KW) @ 5500 RPM.

Engine

The engine was a air cooled single cylinder, two-stroke. A 38.0mm bore x 44.0mm stroke result in a displacement of just 51.0 cubic centimeters.

Drive

The bike has a 1-speed transmission.

Chassis

Stopping was achieved via expanding brake (drum brake) in the front and a expanding brake (drum brake) in the rear. The S51 n was fitted with a 2.3 Gallon (8.70 Liters) fuel tank. The bike weighed just 189.6 pounds (86.0 Kg).