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Why the load index of single tire is higher than double tire's?

Why the load index of single tire is higher than double tire's?

Why the load index of single tire is higher than double tire's?

As subject, i havent found a satisfactory answer at present.
any reply is welconmed,thanks in advance!

RE: Why the load index of single tire is higher than double tire's?

Then what the 9% really addresses is the way the truck's corner weight can unequally divide between the two tires when fitted in a dual configuration?


RE: Why the load index of single tire is higher than double tire's?

I will post a concise citation when I find one. The continental sales training material over simplifies the subject . The reason is load on the individual tires and the factors that affect that.
1 is indeed crown , if the road surface is at angle to the tires the inner tire will have a greater percentage of the load .
2. even 2 new identical tires will not be exactly the same dimensions as they wear differences will increase , the larger tire will carry more load.
3. camber of the axle and how concentric the wheel mounting is will affect how much load is placed on each tire.

The 9 % is a margin of safety , I did not remember that exact number ,but I don't remember many things.

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