I'll be using #35 chain for the clutch to jackshaft "in", and #41 chain from the jackshat "out" to the rear wheel. The main reason that I switched to a #41 chain to the wheel is that I needed the jackshaft "out" sprocket to be at least 2" in diameter in order for the drive chain to clear the swingarm pivot. Using the bigger #41 chain, I was able to get a much lower tooth count for a given sprocket diameter since I was trying to maximize the gear reduction. This gearing combo gives me a top speed of a bit more than 20mph. I think that this will be good for my purposes, and I'll have a lot of leeway as far as changing the gearing goes if I want to raise or lower the speed.
Wait, run that one by again?
My understanding is that tooth count is only used as a relative measure of sprocket diameter...a 2"/10" sprocket combination will give you the same reduction, whether it has large or small teeth.
. Or I'm confused.