Dynamo-hubs are wheel hubs that contain an electricity-generating mechanism (dynamo) that converts wheel motion into electricity to power lights or other accessories on a bicycle. They form an integral part of the wheel in contrast to bottle dynamos that are affixed separately to the bike.

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SON 28 Hub Dynamo “Rotation Lock”?

Good morning/evening/night. I have bought and succesfully installed a SON 28 Dynamo Hub and a Supernova The Plug III on my bycicle. However, when the wheel spins, the Hub Dynamo connectors will spin ...