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What PSI Should My Trailer Tires Be Inflated To?

Question:

With these tires inflated to 125 Cold, what is the Maximum Temperature and Maximum Pressure that these tires should be operated at while towing? For TPMS Alert Settings and safety.

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Expert Reply:

When it comes to proper tire pressure for the Cooper Work Series 215/75R17.5 Radial Tire w/ 17-1/2" Wheel # LH28FR, you're going to want to always follow what's on the sidewall of the trailer for the maximum tire pressure when it's cold.

However, 20-25% of the max tire pressure is what the max PSI should be, and 158°F is pretty common for max temp. If you want a more exact you'd need to reach out to the manufacturer.

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Bryce D

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