Naked Motorcycles
1980Simson S51 B1-4
20 fields on record
The Simson S51 B1-4 is a lightweight 50cc allrounder designed for everyday commuting and learner riders. Its reliable single-cylinder two-stroke engine with electronic ignition delivers modest performance in a nimble 78.5kg package. Best known for practical simplicity and East German durability, it became an iconic entry-level motorcycle across Europe.
- Capacity
- 49.8 ccm
- Engine
- Single
- Gearbox
- 4-speed
- Dry weight
- 78.5 kg
- Seat height
- Not on record
Know it? Add it → - Power
- 3.7 HP (2.7 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built as a lightweight, low-powered moped for short, low-speed trips around town rather than any kind of performance riding.
- Built for
- A charmingly basic, no-frills classic East German moped with modest performance and simple mechanicals.
- Not ideal for
- Not suitable for highway travel, long-distance touring, carrying a passenger comfortably, or anyone seeking speed or excitement.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 49.8 ccm
- Power
- 3.7 HP (2.7 kW)
- Engine type
- Single
- Power/weight ratio
- 0.0471 HP/kg (dry)
- Cooling system
- Air
- Fuel system
- Carburettor
- Starting
- Kick
- Ignition
- Electronic
- Torque
- Not on record - add it
Transmission
- Gearbox
- 4-speed
- Transmission type
- Manual
- Final drive
- Chain
Performance
- Top speed
- 60.0 km/h (37.3 mph)
Dimensions & weight
- Dry weight
- 78.5 kg
- Fuel capacity
- 8.70 litres
- Reserve fuel capacity
- 0.70 litres
- Seat height
- Not on record - add it
Chassis & suspension
- Frame
- Steel Frame
Brakes & wheels
- Front brakes
- Expanding brake (drum brake)
- Rear brakes
- Expanding brake (drum brake)
Other
- Color options
- Red, Yellow, Acid-Green, Dark-Green, Black, Sky-Blue, Navy
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
Rider Reviews
Common questions
What is the engine size of the Simson S51 B1-4?
The 1980 Simson S51 B1-4 has a Capacity of 49.8 ccm (3.04 cubic inches).
What engine power does the Simson S51 B1-4 have?
The 1980 Simson S51 B1-4 has a Power of 3.7 HP (2.7 kW).
How many gears does the Simson S51 B1-4 have?
The 1980 Simson S51 B1-4 has a Gearbox of 4-speed.
How much does the Simson S51 B1-4 weigh?
The 1980 Simson S51 B1-4 has a Dry weight of 78.5 kg (173.1 pounds).
Shop this bike
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The 1980 Simson S51 B1-4 is a classic East German motorcycle known for its quality construction and reliable performance. This two-stroke, single-cylinder bike is equipped with a 50cc engine and a four-speed manual transmission, making it ideal for city commuting and short trips. The S51 B1-4 also features a sturdy chassis, comfortable seating, and smooth handling, making it a desirable choice for vintage motorcycle enthusiasts.
Overall, the 1980 Simson S51 B1-4 is a superb choice for anyone seeking a well-built, reliable vintage motorcycle. Its compact size, efficient engine, and classic design make it a practical and stylish choice for urban riding. Whether you're a collector or a rider looking for a unique and dependable bike, the Simson S51 B1-4 is sure to leave a lasting impression.
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