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Interactive wheel and tire combination calculator

22550 Views 8 Replies 8 Participants Last post by  Turnip_King
Interactive wheel and tire combination calculator.

As an example, here is a side by side comparison of my 17x8 RH AD Cups and my soon to be shod 17x7 Porsche 993 Cup IIs:

The Cup IIs shod with 205/50s are actually 4mm larger in profile, but .8"(20mm) narrower in tread width.

But in weight is where is gets interesting:

Typically 4 pounds lighter rotational mass. Zippy and sticky.

Have fun with your wheel specs. ;)

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Just tried comparing my future front setup from 17x7.5 et40 225/45/17s with 18x9.5 et40 225/40/18. They wouldn't allow it. Keeps either changing wheel width or tire size. Guess it doesn't like a little stretch
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