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The S637 ST Metric Chart shows various PSI for load specification. The chart was posted in a previous post relating to Sailuns S637. The tire installer checked his specifications and said they would inflate the tires to approximately 95 to 100 PSI for single axle usage of over the 3420 (80 PSI @ 3420) on the ST235/80R16. If the Max load is 4080 and our load is approx. 400lbs less, would it not make sense to run slightly less than max psi?
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