I have recently replaced all 4 tires that came on my 37ft 5er. Original tires were ST235-80-16, with max pressure of 80 psi. I purchased Sailun LT 235-80-16, with a max pressure of 110. I retained the...
I'd keep it as a spare, just seems kind of wasteful to spend good money for a tire that is just going to sit there. It's what we did when we upgraded our tires from "E" rated ST tires to "G" rated tires. Of course the spare is a used LT tire that we bought out of necessity, just to get home.