Quote Originally Posted by TrialByFire View Post
Wouldn't the centerline of an 8.5" wheel be at 4.25"--not 4.75"?
No. Because a wheel that is 8.5 inches wide is really 9.5 inches total width. The 8.5 is measured from the inside (bead to bead). The total width of the wheel is from outside of the bead but they dont advertise that number because its the inside measurement is what matters when mounting a tire.