At what psi can I travel 65-75mph?
This Maxxis pdf has the same table. Using the table(s) above, my ST175/80R13 with 1060lbs load could run at a minimum 35psi with ~4% reserve capacity. Is there a +10lbs rule? I run with +1...
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Geeeze people, what part of maximum inflation pressure don't you understand?!!!!!!
A load range C tire's max psi is 50 and a load range D is 65. If the pressure for your load from the load chart is less than the maximum sidewall pressure, then you can increase pressure up to 10psi not to exceed the max sidewall pressure.
If you want to pump them up to a pressure exceeding the max sidewall pressure and go 75mph, be my guest. But, don't complain when they go bang and the tire company denies your claim.
I'm done,
Keith
A load range C tire's max psi is 50 and a load range D is 65. If the pressure for your load from the load chart is less than the maximum sidewall pressure, then you can increase pressure up to 10psi not to exceed the max sidewall pressure.
If you want to pump them up to a pressure exceeding the max sidewall pressure and go 75mph, be my guest. But, don't complain when they go bang and the tire company denies your claim.
I'm done,
Keith
