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      02-21-2022, 03:33 PM   #1
dantm3
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Drives: 2022 M3 Xdrive
Join Date: Mar 2010
Location: austin, tx

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Compared width of pilots 4s vs Pzero for spacer size calculations

So I kept reading up on Rubbing issues and spacers with different brands. I wanted to know the true difference in actual width of the tires so we can calculate rubbing issues with the spacers and what is true difference. Here are the specs and major differences from tire racks testing:
P-zero
Tread width of 9.2 inches
Pilots 4S
Tread with of 8.9 inches

If there is a .3 inch difference that in millimeters is 7.62. I would divide that in half because it is split on both sides of the tire.
So the P zero tires need roughly 3.8mm of clearance on the fender then the Michelin or another way to say it is you can run a 3.8mm bigger spacer on the Michelin which makes sense why a 12mm spacer rubs on a the p zero but 15 mm front spacer doesn’t on the Michelin…

Anyone see anything I missed?
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