Calculating Pressure/Load info for P rated XL tires
#1
Senior Member
Thread Starter
Calculating Pressure/Load info for P rated XL tires
I've been searching for a load/pressure table for the Hankook ATM 275/55 R20 with no luck. I believe I have XL tires due to the load range of 113 that is imprinted on the tire and max pressure/load of 51 PSI - 2535 PSI.
I've read that the recommended pressure is based on the GVW less Cargo capacity. Also, during m search, I came across "Barry's Tire Tech" site. That has some charts that show the pressure /load for a few tires. While he says all of the charts show curves for the data, at the working pressures, the lines are almost straight.
I'm not sure I really want to go to max pressure when I hook up my trailer. So I'm wondering if I can generate a chart of pressure/load values by just using the yellow sticker and tire max numbers to interpolate the data between those two points. Then fill the tires based on scale weights when I head out.
Thoughts?
I've read that the recommended pressure is based on the GVW less Cargo capacity. Also, during m search, I came across "Barry's Tire Tech" site. That has some charts that show the pressure /load for a few tires. While he says all of the charts show curves for the data, at the working pressures, the lines are almost straight.
I'm not sure I really want to go to max pressure when I hook up my trailer. So I'm wondering if I can generate a chart of pressure/load values by just using the yellow sticker and tire max numbers to interpolate the data between those two points. Then fill the tires based on scale weights when I head out.
Thoughts?
#2
In my opinion, you're overthinking it. Set the cold tire pressure and go. I usually nudge the pressure up toward max rated whenever I tow any significant weight. I like having the tires a little on the harder side when towing.
#4
True North Strong & Free
#5
Typically a load range of 113 is a 6ply LT tire in C
http://www.tiresplus.com/tires/tire-...d-index-chart/
http://www.tiresplus.com/tires/tire-...d-index-chart/