Actually I have to say at 55 PSI it hasn't been the least bit rough. I did take the time to research the load tables myself last week to be sure, and found that the OE P265/65R17 tires are rated for 2,337 pounds at 35 PSI. The new LT265/65R17 are rated for 2,270 at 50 PSI and 2,420 at 55 PSI. So in ...