Quote:
Originally Posted by arcosine
From Sheldon Brown: ..... Tire width and pressure are inextricably linked. It is a serious mistake to consider one independently of the other. Generally, wider tires call for lower pressures, narrower tires call for higher pressures......
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That is not only not true for bicycle tires, but it is absolutely not true for passenger car tires and here's proof:
This is a page from The Tire and Rim Association yearbook - the US tire standardizing organization. Notice that regardless of the width of the tire, the table ends at 35 psi (except for Extra Load tires).
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Quote:
Originally Posted by arcosine
......The part of the tire that is actually touching the ground at any moment is called the "contact patch." Generally, the area of the contact patch will be directly proportional to the weight load on the tire, and inversely proportional to the inflation pressure..........
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Sorry that is not true either. Here's proof:
Barry's Tire Tech
Not everything you find on the interwebz is true.