Tire Pressure
What is a good tire pressure for 245/70r 19.5 tire on 2005 Terra, class A. Sidewall has 120 PSI Max, sound like very high? Hankook tires. Need recommendations. Thanks in advance.
Forum Discussion
wolfe10 wrote:
BEST answer: With the coach loaded the way you travel (with full fuel), weigh each wheel position and use the heavier wheel position to go to your tire manufacturer's Inflation table to determine the correct MINIMUM PSI. Perhaps add 5-10 PSI to that minimum.
Next best: Weight axles and go to the Inflation table. Add a little more for "fudge factor" to account for left/right imbalance.
Next best: Go with the pressures on your GVWR plaque (probably near driver's area) which is correct PSI if each axle is loaded to its maximum GAWR.
Worst (hopefully): What is on the sidewall of the tire.
Very good!
What so many seem to miss and especially with older coaches, along with not really wanting to take the time and do it right, is that the max psi rating on a modern tire's sidewall isn't necessarily the max psi rating of the wheel rim itself and many are limited to 90psi from my observation.
