Thread: Why 19?
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Old 02-28-2010, 07:26 PM   #1 (permalink)
jeffreyfranz
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Location: San Luis Obispo, CA
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Drives: '10 370Z PG M6
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Smile Why 19?


I have asked this question on forums for about two years now, and I still don't think I understand: What is the advantage of a larger diameter wheel and tire? The operator of one well-known internet tire website said that if all other factors were the same (i.e. width, profile), and thus the contact patch was the same, an 18" would have no advantage over a 17," for example. Yet, manufacturers appear to be going to ever larger diameters (19," 20"--what's next?).

Why do I care? Go to Tire Rack and see how many options 370Zs with the Sport Package have for tires. Hint: It is a very small number.

Can someone please explain this once and for all?

Thank you.
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