The technology for charging batteries through pedaling hasn't reached an efficiency level we consider satisfactory yet, but we're always looking to innovate on our models.
Regenerative braking is great in a car or motorbike with higher inertia but a bike isn’t heavy enough to allow the breaks to generate enough energy to significantly charge the battery.
To combat not having this function, Superhuman bikes use high-capacity Lithium batteries that give them some of the highest ranges on the market.