I RECENTLY BOUGHT A HIAWATHA FRAME FROM THE EARLY 40'S. I ATTEMPTED TO DO A MOCH UP AND TRIED TO MOUNT THE REAR TIRE. IT WOULD NOT GO ON. I BELIEVE THE AXLES MAY BE TO BIG. DOES ANYONE KNOW WHAT THE ACTUAL AXLE SIZE MIGHT BE FOR A BIKE LIKE THIS. ANY AND ALL HELP IS GOOD.