I would assume you are using the method Pablo is using. I would use the smaller chain-wheel to drive the rear wheel and the larger one to feed from the engine. I would think a 14 tooth would be a good start. There is a sprocket calculator on the net, I think you can Google it. Have fun, Dave
PS: I put a pic of an early Indian to get an idea of the sprocket sizes, remember you have a reduction off the crank first, then the output.
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Originally Posted by jezusjonz  On so I got the bike and the crank and the jackshaft...does anyone know where to find the right gears?? arrrggggg.... |