Appreciate the comments Gentlemen. But, let us review: the problem at hand is that the China bombs which came on many of our THs are crap. So we want a more capable tire. Sadly cyclone triple axle THs have VERY little clearance between tires. Therefore upgrading to a better tire cannot mean a larger diameter tire. This means, unfortunately, that any solution used on a 2 axle camper with much better clearance may well be irrelevant to the problem. It also means that the 235/85R16 size is not going to work since they tend to be about an inch greater in diameter than the stock China bomb 235/80R16s- one exception is the G614s which are nearly identical diameter to China bombs. Now what also will not work is the Michelin XPS Ribs for similar reasons, even if one chooses the 245/75R16 it is rated for a 6.5 or 7" rim, and our stock rims are 6". So Gentlemen, other than changing rims or trading up to the G614 I wonder how anyone has managed to upgrade to a more capable tire while maintaining the same or similar diameter, which is about 30.8"?