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What Tire Pressure Should Castle Rock ST225/75-15 be Ran At  

Updated 07/17/2024 | Published 10/09/2020

Question:

What is the recommended tire pressure on Castle Rock ST226 17.5 R15 tires, if you can tell me pls. Thank you

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Expert Reply:

Trailer tires like the Castle Rock ST225/75-15 part # 274-000029 need to be inflated to their max pressure rating when cold. This tire needs to be inflated to 65 psi as that is it's max rating.

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Jameson C
Jp L. profile picture

Jp L.

7/17/2024

I read your answer for the question (What is the recommended tire pressure on Castle Rock ST226 17.5 R15 tires) But if I ride for several hours, will the pressures exceed the max PSI recommendation when they are hot?

Jameson C. profile picture
Etrailer Expert

Jameson C.

7/17/2024

@JpL This is a great question but you'd have nothing to worry about. Yes the pressure of the tire will go up as it warms up but it will be within an acceptable range.

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