Thread: New tyres.
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Old 09-17-2017, 04:34 PM   #11 (permalink)
gone-ot
...beats walking...
 
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Quote:
Originally Posted by JockoT View Post
My car takes 175/65/14's too. With the difference in tread depth between new tyres (8mm on these ones) to 2mm before changing them, this is a difference of 12 mm in diameter (disregarding tyre distortion).
Which is roughly about 3%, from Michelin™ specs. Per their revolutions per mile values, the rolling-diameters compute to be about 97% of the unloaded-diameters.

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