Thread: Track day tires
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      04-24-2011, 06:56 PM   #15
hwelvaar
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Drives: BMW M135i MT
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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.
Not a specialist on tire sizes here, but how does choosing a wider 18" tire (275/35 instead of 265/35) has anything to do with the speedometer, which is propably based on wheel RPM ?
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