When I was replacing my trailer tires the Sailuns were temporarily unavailable but a friend in the trucking business recommended Super Cargo tires, as he had been using them on his dump trailers. I great price too. Believe me when I say this is a heavy duty commercial tire, they weigh about 75 lbs each with an extremely stiff sidewall. I've used these for the past 4 years with no issues and they have a 75 mph speed rating. Comforting to know when you're loaded out at 18000 lbs. (13,330 on the trailer axles)
https://www.walmart.com/ip/Super-Car...900886214360d6