Hi, wonder if someone can give me some advice about something which has been perplexing me for awhile.
One of my projects is a chopped up modified bicycle, I've removed the bottom bracket area & crankset etc, and am planning to use only an electric motor to drive the rear wheel.
The issue is about having the same kind of sprocket on the motor as is on the bicycle rear wheel.
Related issue is having a large enough sprocket on the rear wheel for the desirable gear ratio. And no I don't know what the gear ratio should be, as I've not connected the motor to the controller to see what it's RPM is.
The motor has a 1/2" shaft and can take a setscrew.
The existing rear wheel has the typical shimano cassette. That means the cassette mounts over a splined cylinder. I forget the correct technical terms.
The sprockets I find for a 1/2" shaft are for normal roller chain. In the #40 size it is the same pitch as bicycle chain but wider. That means bicycle chain doesn't fit on normal sprockets for electric motors, and normal roller chain doesn't fit on the bicycle sprocket on the rear wheel.