[Logic]

Originally Posted by freebeard

The would be one solution. Another is ecomodder.com: Trick hub motor

Yep; the free-wheeling Freegen hub motor with regen is really going to be something when it comes out.

Anyone in a rush:
It would be pretty easy for someone with a lathe etc to mod a stock freewheel hub motor to do the same thing.
All the info you would need to show such a person is in the linked video and more here:

https://endless-sphere.com/sphere/th....125650/page-3

https://forums.electricbikereview.co...red-hub.56102/

https://endless-sphere.com/sphere/th...gebike.122120/

Apparently regen also saves a lot on brake maintenance and pads.

Grin is renowned for their Open Source 'right to repair' ethos, so fixing is way easier than the locked down encrypted expensive crap from most other suppliers.