I test rode the Vello with Zehus, the motor is quite weak up a shallow gradient and the regeneration saps downhill coasting markedly. I think the battery was small (iro 150Wh). I concluded it wasn’t for me with rides between 10 to 30 miles.
I had the same Grin system you got for your Brompton (on a non-Brompton bike; long story) and only got 5-10% more charge in the battery by regen braking (according to Grin's Cyclanalyst controller) even though it was mostly city stop-n-go riding. While regen braking is nice in some ways it is nowhere remotely near a perpetual motion machine.
I test rode the Vello with Zehus, the motor is quite weak up a shallow gradient and the regeneration saps downhill coasting markedly. I think the battery was small (iro 150Wh). I concluded it wasn’t for me with rides between 10 to 30 miles.
I believe that the Interceptor II will be a lot better than the Zehus.
I had the same Grin system you got for your Brompton (on a non-Brompton bike; long story) and only got 5-10% more charge in the battery by regen braking (according to Grin's Cyclanalyst controller) even though it was mostly city stop-n-go riding. While regen braking is nice in some ways it is nowhere remotely near a perpetual motion machine.
You have to manually calibrate the rate of regeneration because out of the box settings are rarely adequate.
Interesting!
Would battery weight be better not in wheel hub, but on bike frame?
Or, is that irrelevant?
Irrelevant.
@@SmallWheelWonder So want to follow this project! Exciting!