Well, here's how the drivetrain will be run. 17hp twin cylinder mower engine(3600rpm gov. but I may un-govern it someday) run to a 5-speed transmission, then chain drive off the transmission to the axle shaft. The shafts for chain are all 1" keyed so no problem on sprockets from 13T up to like 48T. The actual ones I plan on are 25T on the transmission and 13T on the axle. The reasoning is to speed back up, mower transmissions are meant to be slow. This way I'm not over-revving the transmission too. I'll try and draw up a pic with paint to show what I'm thinking.
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