My Honda Trail 70 with a 110cc engine and a half gallon tank made it on a full tank and back with some left to spare, I would think the Rupp's could make it too, they hold about a gallon of a fuel on a full tank, The ride is a little slow like at Windber on the way there, and on the way back once you know your way back to the fair grounds guys will hit it hard back there. It's your butt that gets sore on the ride. :laugh: Also some guys strap a small 1 gallon gas tank to the luggage racks on there bikes if they had one.