bob213 wrote:
Find your problem before investing in new tires. If you go to a higher load rating ("D"), make sure your rim can handle the increase in PSI (65PSI). To get a 14" tire in a "D" rating you will probably have to go to the Kumho 857. Keep in mind that they are not an ST tire and the direct replacement for a 205/75/14 ST tire is a 195R14 Kumho.
Good points about the load rating of the rim. If my bet is right that he has Sendel T03 rims, they are rated for 1900 pounds at 60 psi. So by going to a LR D tire, even if he did not run it at it's 65psi max, and just ran it at 60 psi, he would still be in an improved situation compared to a LR C tire at 50 psi.
For what it is worth, I asked the question of both Sendel and the folks at cruiser rv if I could run LR D tires, and use 65 psi safely on these wheels, and they both said yes. I'm not trying to start an argument about whether a person "should" run the wheel past 60 psi.....so hopefully this will all stay on topic. I'm just passing that info along for what it's worth.