After I blew out a couple of Goodyears I checked around and "Towmaster" tires had a good reputation and I bought a set. Good luck so far but I have not got that many miles on them. I run them on a 24ft Classic RTX. The are sold by a company named Greenball. They can be made most anywere in the world. I was told mine would be made in India but when I got them they had been made in Canada. I can't remember the dealer I got them from but could find out if it was important.
When I was doing the search on Greenball I was suprised to see that Jeg's is selling them now.
Good Luck,
Bill
http://www.greenball.com/