Bicycle generator technology has advanced far beyond the bottle dynamos of years past, which as often as not would introduce enough drag when engaged to stall the bike. Granted, it’s not as much of a ...

Dynamo hubs are fantastically convenient. They power your lights whenever you ride, meaning you never have to change batteries. And because they are sat inside the wheel hub, they're safe from the ...

The idea for this circuit came when the author had problems with the wireless speedometer on his bicycle. Such a device consists of two parts: the cycle computer itself and a transmitter that is ...