Bicycles might seem quite an old and outdated transportation when compared to modern vehicles, but its role for a sustainable mobility chance has been recently acknowledged, thanks to an increased sensibility towards environmental issues. In this regard, the bicycle is quite unmatched, considering that in its life cycle the only CO2 emitted is the one released during its production. Moreover, innovation has affected bicycles too, making them anything but an old and outdated vehicle. In fact, with systems like the pedal assistance, the raw driving power of a bike has been separated by that of the leg muscles of its rider: nowadays, people can easily ride steep roads without fatigue and way faster than they would otherwise.