- Mar 16, 2005
I have rubber manufacturing experience having been President of a Tier 1 supplier to auto companies for rubberized products and solid tires for others. However, not auto/RV type tires per se. Long way of saying I understand rubber compounding issues. My question has to do with other issues (I think). Owners of a Class A motorhome have been bitching about very rough ride for several years now. The solution proffered is to get the manufacturer to change out the tires from 275/70R22.5 LRJ to 275/80R22.5 LRH on the basis that the higher sidewall improves the ride. Owners who have been given the new tires or shared in the cost of change out report improved ride. I'm a doubting Thomas on this one; I suspect psychological factors at work. I can't see a small change of about an inch in sidewall and possibly a 5 # reduction in tire pressure doing much of anything but maybe the load rating is a factor. Does anyone have tire building experience to be able to comment on the possible improvement ??