Last fall, I installed a set of Sailun tires on my Montana, upgrading to G rated tires. I’m running only 90-95 pounds in the tires. They are shaking the camper quite a bit. Last week, we cravked th...
G ‘s are rated for up to 110 PSI so possibly at the lower pressure your running they wouldn’t Be as firm and may cause a bouncing effect from a softer tire. We used to run Goodyear G’s on a 15400 GVWR fifth wheel that had originally had E’ s on it and ran them at 110 psi. We never had any problems with bouncing or damage from a rough ride .