Cummins12V98 wrote:"Can you please list a couple of these tires you are referring to? Also post a couple that do not apply."
Not sure of exact tires Capri is referring to?
The newer style ST tires, such as Provider, Endurance, maybe Carlisle HDs, have a nylon wrap around the plies, adding support, and allowing higher speed ratings. Not sure this nylon wrap would cause flat spotting.
My Providers never seemed to flat spot from sitting over Winter. I do add an extra 5 psi in late fall due to air loss from Winter temp extremes. I air to 70 psi, even though tire max is 65. I let back down to 65 when warm temps return.
We do know the nylon tires of yesteryear did flat spot.
Jerry