I'm tubeless on OEM 16" rims, same size as Tim LT 215/85R16. The rims are closer to 4.5 or 5" in width. The tires went on as-is with no special attention to the rims. Although I think the tire guy wirebrushed the bead.
Two of the four rims seem to lose air slowly. So I guess I need to clean and seal up the rims a bit.
