Remember those "bottle"-type dynamos that rubbed against the side of your bike tire in order to power the lights? Well, they've gotten a high-tech makeover, in the form of the fork-mounted CadenceX ...

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.

Cyclists are already doing their bit to help the environment by eschewing a fossil-fuel guzzling transport option. Now they can do a little bit more using Nokia’s newly unveiled Bicycle Charger Kit ...

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.