SailorSam20500

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?

Pugga

iTrader: (1)

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.

Norotso

Typically a load range of 113 is a 6ply LT tire in C

http://www.tiresplus.com/tires/tire-...d-index-chart/

Norotso

+1

Pugga

iTrader: (1)

Tires for 20" wheels have some screwy load ratings. They have Standard Load, which is basically a P-rated truck tire and XL or extra load which has the same rating as an LT load C tire. No idea why they rate them differently.

5.0GN tow

18s are that way too, my last set on my 13 were 116 load index and 2756lbs per tire.