SOUBITEZ 1950 6V Dynamo Vintage Touring Bike

The SOUBITEZ 6V Bottle Dynamo for a 1950s Touring Bike

This is a SOUBITEZ 6V bottle dynamo, the classic sidewall-driven generator specified on countless French touring bikes of the 1950s. Its role is simple: to power a headlamp and tail lamp at riding speed without batteries. As a used component, its value lies in its period correctness for a restoration, not in modern electrical output.

The housing carries the SOUBITEZ marking. The mechanism is external — a small drive wheel bears against the tire sidewall. The shell mounts to the frame or fork via a clamp. Electrical connection is made through a terminal. These are the defining features of a bottle dynamo from this era, and this unit is offered as a vintage item in used condition.

Condition and Description Data

The existing description for this listing states only the following: the photos are an integral part of the description. No major structural defect — a cracked housing, a bent bracket, a seized drive wheel, a broken terminal — is declared by the seller. The working state of the internal winding and the free rotation of the drive wheel are therefore to be assessed from the photo set. Minor cosmetic wear and storage marks should be expected on a component of this age.

Placement on the Bicycle

On a 1950s touring bike, a 6V bottle dynamo typically mounts on the left side of the fork blade or on the left seat stay, with the drive wheel running against the tire. The wiring path follows the down tube or chain stay toward the lamps. The output is nominal 6V at riding speed, and the bulb set is not included in this listing.

For the other half of the circuit, a period-correct front light such as a Vintage CIBIE front headlight continues the system. The vintage bicycle dynamo selection also holds similar units for comparison.