Quote:
Originally Posted by smbstyle
Did a little research on Tire Rack on sizing:
(all XXX/45R17 sizing)
TIRE / SECT WIDTH / TREAD WIDTH
OEM Primacy / 8.4 / 7.5
MPSS 215 / 8.4 / 7.7
MPSS 225 / 8.9 / 8.2
RS3 215 / 8.4 / 7.9
RS3 225 / 8.9 / 8
ZII 215 / 8.4 / 8
ZII 225 / 8.9 / 8.2
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Take the numbers with a grain of salt; Tirerack just republishes manufacturer numbers.