As I have said many times before the OEM tires manufacturers install should be considered delivery tires only. Manufacturers will put the exact same tire on park models as they do tow behinds. The manufacturer installs the cheapest tires that barely make spec as most units are only towed from the dealership to seasonal campground maybe once a year. For those of us that want to tow thousand of miles yearly why would you trust your many tens of thousand of dollar investment on the cheapest OEM tires that you have no idea how they were used and abused during delivery. Over-speed, under-inflated and bounced off curbs during delivery from factory to dealership damages these already junk tires. Make it part of your purchase deal to not accept a unit without new quality name brand tires.