this post was submitted on 16 Oct 2025
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Do most e-bikes not charge from the pedals? Combine that with regenerative coasting/braking, and this isn't really that dumb. Like yeah, obviously thermodynamics, but an E-bike with pedal charging isn't a closed system.
Regenerative braking is not worth it on bikes... it's worth it on cars because you are slowing down over one and a half tons of weight and going much faster so there is serious amount of energy to be recovered
You’d basically need electronic braking for this to work. Which should be theoretically possible since we already have electronic gear shifts. Would be tricky to get the feel right in the transition between motor to friction.
The pedals seemed like the bigger contributor, I just added the other for a few percent.
If I'm riding an electric bike, it's to make pedaling easier. Why would I want an electric bike that's harder to pedal?
If you extract enough energy from pedaling to charge a battery while also travelling, you'll definitely end up using more power than less. Which absolutely defeats the purpose.
All these "smart" ideas would already be implemented if they were actually clever and deployable. The reason no one does it is because physics doesn't work that way.
I've built two eBikes and can confirm that they do not.