This is a vintage advertisement for a VéloSoleX, which is a famous French motorized bicycle.

In the picture, you can see the bike sitting on a rotating display stand.

These were very popular in France starting in the 1940s. Here are a few cool things about it:

• The Engine: Unlike a regular motorcycle, the engine on a VéloSoleX sits right above the front wheel. It uses a small roller to spin the tire and make the bike go.

• The Sign: The signs in the back talk about how much money you can save. One sign says you can go 100 kilometers (about 62 miles) on just 1 liter of fuel.

• The Name: People often just called them a "Solex."

They were known for being simple, cheap, and very easy to ride.

It was basically the "bicycle that walks by itself!"

4/2 Edited to

... Read moreI’ve always found the VéloSoleX fascinating, especially its clever engineering that sets it apart from traditional bicycles and motorcycles. The engine sits right above the front wheel and uses a small roller to drive the tire directly, which means it doesn’t require a chain or a complex transmission system. This simple design made it very accessible and easy to maintain. One interesting aspect I noticed, tied to the vintage advertisement mentioning "VELOSOLEX ECONOMIE JASHAM 36.610 Frs + TAXE" and the impressive fuel efficiency "1 Litre & SOLEXINE 100," is how economical these bikes were. Traveling 100 kilometers on just one liter of fuel is remarkable, even by today's standards. This made the VéloSoleX very popular in post-war France when affordable and efficient transportation was crucial. From personal experience and talking with enthusiasts, these bikes are cherished for their reliability and charming vintage appeal. Riding one feels like stepping back in time—the engine’s gentle hum combined with the lightweight frame offers an effortless journey, truly living up to the nickname "the bicycle that walks by itself." For anyone interested in classic vehicles or eco-friendly transport solutions, the VéloSoleX represents a perfect blend of history, innovation, and practicality. Its design philosophy emphasizes simplicity and cost-effectiveness without sacrificing functionality, making it not just a collector’s item but also a symbol of sustainable urban mobility.