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About the truck tires just wondering about the side walls, which are best in a rocky condition where most rocks are not much bigger than a foot ball but sharp edges I ride very slow in those conditions, but would love a little smother ride. I know get out of the rocks but the trails lead to those conditions I live in eastern Kentucky. where trails are unlimited. love my P 500. but don't like the bottom out some times on the 25x 12'sI definitely will.