Quote:
Originally Posted by metroschultz
OEM = taller, wider, more contact patch
Donut = shorter [slightly], narrower, less contact patch, and they present a round face to the wind.
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Contact patch doesn't change
The only things that will change contact patch is a change in vehicle weight or a change in tire pressure.
Wider tires will have a wider patch (left-right) but will be thinner (front-back).
Skinnier tires will have a skinnier patch (left-right) but will be thicker (front-back)