Weighing your rig will cut out the guessing.I've never heard anyone have problem with there tires running maxium pressure but running low can and will create build-up of heat which is poison to your tires. If a person never wears out there tires then it would probably be wise to keep the maxium pressure for the cooler running and i believe it would more than compensate for the rougher ride. I put about 5 to 6 thousand miles a year on my rig so my tires will most likely time out before they wear out. As hard as the rubber is on the sailuns i could easily see someone getting 40 to 50 thousand miles on there tires if they don't time-out first. ' COOL IS BETTER' especially in the summer.
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