Friction drives like the Rubbee provide a lighter, simpler option for transforming a regular bicycle into an e-bike. Velogical's all-new Velospeeder makes the friction drive even lighter. The compact ...

You had probably all but relegated rim dynamos — also known as bottle dynamos — to the history books, but this very neat dynamo from Velogical may make you think twice about their relevance today.

If you would like to add a little extra propulsion power to your bike and transform a standard bicycle into an e-bike, you might be interested to know that this month Velogical has unveiled their ...

You had probably all but relegated rim dynamos — also known as bottle dynamos — to the history books, but this very neat dynamo from Velogical may make you think twice about their relevance today.