One of the Ranger trailer engineers told me two years ago, that when Goodyear switched the production of their Marathon trailer tire to China, the quality and reliability went to the crapper. He told me that is why Ranger started using Carlilse's. Still made in China but he said Carlilse would stand behind their product. I don't know if Goodyear is still offering the Chinese made Marathon tire, but I would not run them or any other Chinese piece of crap on my trailer.