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MotoLibrary Score
34/100Commuter
Power/Weight
0.05 hp/kg
Top Speed
80 km/h
Engine
51 ccm
Technical Overview
1986 Simson S51 n Technical Analysis & Specification Breakdown
Positioned in Simson's enduro - offroad motorcycle lineup, the 1986 Simson S51 n relies on a 51 cc (3.1 cu in) air-cooled single cylinder, two-stroke powerplant. In factory specification, peak output is rated at 4 HP (2.9 kW) at 5,500 rpm, transferring power to the rear wheel through a 4-speed gearbox and chain final drive. With a specific output of 78.4 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the S51 n measures 86 kg (190 lbs) dry.
Specific Output
78.4 HP/L
Engine
Displacement51.0 ccm (3.11 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsSingle cylinder, two-stroke
Power4.0 HP (2.9 kW)) @ 5500 RPM
Compression9.0:1
Bore x Stroke38.0 x 44.0 mm (1.5 x 1.7 inches)
Fuel SystemCarburettor
CoolingAir
Max RPM7200
Transmission
Gearbox4-speed
Final DriveChain (final drive)
Performance
Top Speed80.0 km/h (49.7 mph)
Fuel Consumption2.00 litres/100 km (50.0 km/l or 117.61 mpg)
Greenhouse Gases46.4 CO2 g/km. (CO2 - Carbon dioxide emission)
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
