Re: newbe question
I don't think anything but the jackshaft kit that allows you to drive your own sprocket would take advantage of the bike's auto transmition. Everything else would just turn the wheel the same as a friction drive would. You need something to turn the bik's chain and rear sprocket I think. Check with pablo or ghosto they have a jackshaft that works with the cheap ole china bike to do what you need, I think.
My posts have entertainment value only. A bike ain't yours till it has your blood on it. Then it owns you.