Our 2011 3450 Ts came with Sailun G rated tires. I know they are China made, but so far I haven't read anything bad about them on the internet. I like you am worried about my tires after reading this forum and some others on the internet. When researching replacing these tires I found out that in my tire size, there were only 2 choices. The completely overpriced Goodyears or the Sailun in the G rating. There may be others that I might of missed. I know by saying overpriced I will get someone to comment on the cost of a blowout ect. I do know what a blow out can cost as I had one on my old rv. I think it was my fault though. The cost of the Sailun is less then half the price of the Goodyear. I think when I do change to new tires it will be Michellin rib even though they won't be G rated. I think we are light on what our rv weighs on the axels because we carry a lot in the truck and we don't care about how heavy we are on our hitch weight. But we will weigh before changing tires. This is our 4th 5th wheel now and I never really ever thought about weight when I bought tires. I will now, but I still think most tire failures are because of speed. We traveled down here at 62 mph from SD to Texas and I think virtually every rv on the road passed me. Some had to be traveling 75 or better. And believe it or not, some of the tires I had on prior rvs were China made, I didn't realize so many brands were made in China. Good luck on your travels and I will keep watching my tires.