I’m thinking about increasing the tire size from a 205/75/15 to 225/75/15 on a 2001 Jayco Quest. Has anyone increased to that tire size? Are there any benefits? Any recommended ST tire ply...
"C" range tires are 6 ply rated and inflated to 50 psi max
"D" range tires are 8 ply rated and inflated to 65 psi max
"E" range tires are 10 ply rated and inflated to 80 psi max
These are the industry standards but of course there are some bending the accepted rules (mavericks) used to make their tires sound better than their competition. It's called "marketing" and miss-leading marketing claims do NOT make the tire any stronger but so many are sucked in!