Thread: Track day tires
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      04-25-2011, 07:06 PM   #23
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Quote:
Originally Posted by hwelvaar View Post
Why does BMW sell 1M with different sizes front and rear, and/or why would you run a square setup then?

Just asking to learn...
Some people use the square set up to help reduce understeer. Some use it so they can rotate the tires and maximize their life.

RWD cars with lots of power will usually come with wider rears for added traction.
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