Ever heard of a “digital drive” bike? It might seem like a strange concept, but several companies are developing commercial offerings that use electronics instead of a bike chain to power a ...

The first time you push a software button on your phone and hear your bike chain make a whirring noise then release itself, it kind of blows your mind. It’s a real “welcome to the future ...

It then delivers this energy to the rear wheel (or wheels) via cables strung inside or outside the frame of the bike, rather than sending it mechanically through a chain or belt. Excess energy ...