Jim,
I see all these post on here about tire troubles and have a few myself over the years on our old trailer. But most of the time they were because the trailer sat for long time and we did not use it. So the tires went bad. Now on our Cyclone I make sure I stay on top of them and keep them up to pressure at all times. I also take the trailer out for short runs every month during the winter when it is in storage. I may only take it for a 4 mile run, but I make sure the tires get worked a little through out the winter. Something else I see when we are out on our travels is how some people drive their Rigs. They will take a 30 to 40 ft trailer and turn around in a very small place or run over the curb, etc. Well that is asking for troubles with your tires. I have been driving fire apparatus and tractor trailers for years and I take pride in being a good driver and love to show people I can put our big Cylcone in places they say I can not put it. But I make sure it will go without hurting anything on the trailer that includes the tires. Any way I feel most folks tire trouble are not in the tire manufactures or where they are made. But in the way they drive,how fast they drive,roads in the area of the country they live,How they care for the tires,ETC. If you look, and look close just about all trailer tires are manufactured over seas. I know Maxxis has it home office in Norcross GA. But there ST tires are made in China too their Specs. I have had GREAT LUCK with their LT tires on my service truck. I have also used their trailer tires on our old trailer. Never had one fail.As for our Cyclone it has Mission tires on it now. As you know by my other post, I have not had one fail me,but I could have one go on my next trip. If it does OH WELL. I will fix the rig and go on.I truly think by me running my tires at 72 PSI, It has given us many miles of trouble free service out of the D rated tires. So I figure when I put new tires on I will stay with 15 inch ST but buy Maxxis 10 ply G rated. Then I will Run 80 psi in them. Sure my wheels are rated at 75 psi max, but I figure they will handle 80. The wheel manufacture most likely puts a little safety factor in the wheels. I think I will be safe only going up 5 psi over.