sgrizzle wrote:
Thanks for all of your comments. We just got back from our trip to Yellowstone (2,500 miles!!). I can't believe the difference in towing from the two week-end trips we had before (with the tires at 50 psi and our cross-country trip to Yellowstone (with the tires at 65 psi). WOW! I never would have thought that would have made such a difference! Not as much sway, much more control. I was amazed.
I know, you probably think I'm a little dense. But I really did not expect that!
Great news! Towed trailers of any type benefit greatly from stiff sidewalls. The tires themselves, their condition, load ratings, and inflation pressures make a drastic difference.
Underinflation or things like running car tires on trailers cause trailer wagging. It's not the same as vehicle tires, which often have a range of inflation for various conditions.
Many confuse the two, but the proof as they say 'is in the pudding' ;)