Rassy wrote:Marks, on my first project a few years ago I mounted a scooter motor just ahead of the crank and ran a chain from the motor to the largest sprocket wheel. It worked okay except the pedals and motor always turned together, unless coasting.
The point of my post here is that I was unable to shift to the middle sprocket wheel because there was not enough clearance for chains to be running on adjacent teeth. I think this would also be true on your rear gears, so you will probably lose your two lowest gears. The good thing is, with a motor, you won't need those low gears.
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