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Old 03-11-2013, 09:09 AM   #25
SamDoe1
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Join Date: Oct 2010
Location: Minnesnowta
Posts: 3,485
My Ride: Clubs baby seals
Quote:
Originally Posted by JBEAU View Post
yep amazing aint it lol long as the tires are same rolling diameter within a percentage
I was being sarcastic. Everything you posted has been completely vetted for years on this forum.

Quote:
Originally Posted by Arnezie View Post
And whats that percentage ??
2-3% tops.

Quote:
Originally Posted by devin_name View Post
How do you determine revs? Sorry if this is a dumb question or not. I have staggered wheel set from my other e46 and wanted to put them on the xi... They are within about 5mm of each other when calculating side wall diameters.

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http://www.miata.net/garage/tirecalc.html

Quote:
Originally Posted by jmo69 View Post
Go to Tirerack and check the specs on the tires you're running, the revs per mile are listed there.
I don't think tire rack states this information so I could be wrong. Either way, the above link saves you from doing the math.
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