Thanks for the response. I agree. What is your bike? I remember seeing another one on the web that had the motor at the BB. But I can't find it now. I'm considering running a chain from the motor on my eZip up to a "stroker's chainwheel on the left side. That way the motor would have the advantage of the 21 gears. I think it would extend mileage, if the motor didn't have to work so hard on hills. But there would be no freewheel, motor would turn any time pedals moved and vice versa.

take care, Don