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      01-11-2021, 04:51 AM   #102
jmg
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Drives: G82 M4C X-Drive
Join Date: Mar 2013
Location: Orange County, CA

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2022 G82 M4C X-Drive  [9.85]
2018 F80 M3 CS  [9.87]
2019 i3 BEV  [0.00]
Quote:
Originally Posted by VIERsr View Post
275/30-20 wheel has the same diameter as OEM 275/35-19, putting lighter 20" rims in the front we can have a better look and keep the same ratio F/R without adding weight, but I don't know how the lower sidewall only in the front could impact on dynamics.
275/30-20 is 673mm
275/35-19 is 675.1mm
(Edit - corrected diameters)

CanAutM3 stated earlier:

Quote:
Originally Posted by CanAutM3 View Post
Most likely to reduce understeer. In general terms, a larger sidewall tire provides greater ultimate grip at the expense of handling response.

The same thing was done on the F8X M3/4[SIZE="1"]CS[/SIZE] and M4[SIZE="1"]GTS[/SIZE].
So a lower sidewall would probably increase understeer all other things being equal.
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2022 G82///M4 Competition X-Drive - KW-HAS, EBC Bluestuff, Millway Race Camber Plates, Cup2 Connect*, PSI High Flow Midpipe, Lightweight Front Lip, M Perf Flow Through Wing
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