Tires: ST tire construction statement, rubber compounds, tire retailer

Question
A large tire retailer (on-line and stores) makes the following statement regarding ST tires.

Why Use An "ST" Tire
•"ST" tires feature materials and construction to meet the higher load requirements and demands of trailering.
•The polyester cords are bigger than they would be for a comparable "P" or "LT" tire.
•The steel cords have a larger diameter and greater tensile strength to meet the additional load requirements.
•"ST" tire rubber compounds contain more chemicals to resist weather and ozone cracking.

Can these statements be verified as being generic to ST tires by all manufacturers i.e. a standard ??????

Answer
Ecker,

A standard?  Well, let me put it this way.

The standards for tires are published by various tire standardizing organizations.  I cover that here:

http://www.barrystiretech.com/tirestandardizingorgs.html

You'll notice that what is published as a standard are a series of tables for the various sizes within a given type of tire.  The load carrying capacity is summarized by a table - as well as the physical dimensions and the operating conditions a particular type of tire is supposed to be used for.

What that means is that some of what the retailer published are generalities that can't be construed as a "standard" - just generalities subject to exceptions and the ways in which each tire manufacturer goes about designing tires.

Do I agree with all that he has stated?  No, but then I can't speak for even one manufacturer in an official capacity.

Do I agree in the generalities?  Yes.