Thread: Track day tires
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      03-27-2011, 01:31 PM   #4
SamS
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Drives: Tesla M3 Perf + '18 X3 M40i
Join Date: Jul 2010
Location: Dallas, TX

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Quote:
Originally Posted by l888apex View Post
remember, dropping down to 18's is going to cause you to have to go with something like a 275 or 285/35/18 in front to maintain the proportions of the tire and keep the odometer and speedometer in check. or, you could go with a taller sidewall. In the rear, you would need 305/35/18s. Not sure how much cheaper or more common these are than 19" wheels, but something to keep in mind when making the switch. The fenders look wide but I'm not sure how much clearance they would have for wheels that wide, especially depending on the offset.
Seems to me it would be easier to just go with a taller sidewall. For the rear, you could run 265/40/18 instead of 265/35/19 and be just 0.164% bigger diameter than the original tire. No width clearance issue to be concerned about.
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