Quote Originally Posted by ssgthump View Post
Does anyone know how to do this conversion?
Sent you a reply PM - Open differential splits the action between the two rear wheels, so with one off the ground your ten revolutions becomes five, or if you'd rather your 13.5 becomes 27, and dividing 13.5 by 5 or 27 by 10 confirms your 2.73 gears. Go back and have your son spin that back wheel twenty times and you'll see 27 full turns plus 1/3, but I'd like a video of that process if you can I loved that story, by the way!