Good chance it was the tyre, but best take the rims to a tyre centre & ask them to run the rims on the balance machine to see if they run true if there not visually warped
Before you could buy fancy rims for the old landrovers the firm I worked for usedto cut out the centres and fit a flame cut spoked centre.
Welded them in trued up with an old hub tacked down and spun on a rough surface plate via angle grinder
Not pulling any legs here this really did happen