FastEagle wrote:
ExRocketScientist wrote:
Tireman9 wrote:
ExRocketScientist wrote:
Snip
CapriRacer -- can we work up a chart?
Are you suggesting a chart that has the information in TRA book and that is already on most tire company web sites? Not sure if I understand the need. Trying to duplicate the info in all the web sites to ensure that any individual outliers are covered will be a real challenge.
I don't have access to ST type tires but maybe someone at a campground could do a quick walk around to see if they can answer this question.
Do Some, Most or All LT tires you see include the "Service Description" This is the number letter combination after the size with the number being the Load Index and the letter being the Speed Symbol.
Do Any ST tires have a Service Description?
In Passenger & LT tires the intent was to make it easy for an owner to get replacement tires as all that they should do is read the Service Description and be sure the replacement tires have a number equal or greater than the OE tire and a Speed symbol equal or faster than OE.
I think you missed what I am asking. I am not asking for the information that is on the sidewall of the LT tire. I am asking if you made an ST tire the same dimensions and inflation pressure as a particular LT tire, what would the max load rating be on its sidewall. Because of the difference in K factor, we know it is a higher number than what is on the sidewall of the LT tire. But instead of qualifying it, I am asking that it be quatified for about a dozen popular LT tire sizes.
By doing as you suggest you would be stepping HARD on he toes of the DOT.
FE
Not really in my opinion. They already state you should divide the load capacity of a P tire by 1.1 if using it on a Truck/SUV/or trailer. This is a similar idea. Based on CapriRacers 12% and 15% rules, you would multiply the single wheel load rating of the LT by 1.12 to get its equivalent zero margin equivalent special trailer application rating, and then divide the load capacity you need by 0.85 and see if the numbers match. This is just an extension of an existing methodology starting with a different type of tire.
