Tires tires tires, I have had tire troubles with my 5th ht wheel ( Goodyears) replaed all of them because they were marginal from the factory. No issues yet with new tires. My son on his current Florida vacation had 3 tire blowouts/failures. We both have kept the tires covered and the pressure checked all the time. Alert to anybody buying a new rv should upograde the tires from whatever the factory uses. My previuos rv went for many years without any issues. I think there is some deterioration in the rv industry as far as tires are concerned. Marginal marginal, cheap cheap. An option to upgrade would be nice. My 2 cents.