NHTSA Complaint #11486035 — 2021 KEYSTONE KEYSTONE

This is the second trailer I've experienced a problem with Trailer King tires. The first time was on a 2018 Keystone Outback Ultra Lite trailer, when I discovered 3 of the tires had rounded tread rather than riding flat on the road. This problem occurred while in Arizona on a trip. Took it in to the nearest tire shop (Discount Tires), who confirmed that the tread ha separated, and replaced all four tires. I no longer have my receipt for this installation, and don't know the exact tire size, but it was on 2/21/2021 and the cost was $621.71. The latest time the tires were Trailer King RST (ST235 80/R16) : When preparing for a trip on Friday Sep 16, 2022, checked tire pressure and noticed curb side front axle tire about 5 psi low, which was unusual because all four were exactly the same every other time I checked pressure before each trip. So I added air to the tire, then notice that the tire tread was rounded just like the 2021 occasion. I drove the trailer to Discount Tires in Waxahachie, Texas who confirmed the tread separation and replaced with four Goodyear Endurance ST235 / 80R16 tires installed. Cost $945.34.