- A Bakfiets with a bad controller (hills too much for it I think)
- Supplier has offered to send me a new controller
- Supplier has also offered to supply a whole new separate battery - controller - motor system to mount on the front wheel (to prevent a recurrence of controller failure). This is a unit he has unused and it is designed for a rear 26 inch wheel.
This sounds great, but I am worried that his second controller won't properly drive my 20 inch front wheel.
My question - will this system work? Do controllers need to be configured to drive different wheel sizes? I feel the answer is yes, otherwise, how can a controller know the speed of the bike - it only has two ways of knowing this - the pedelec or the motor.