2013 Infiniti M56 Tire Sizes

Factory original equipment (OE) tire specifications.

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Base

Tire Size
P245/50R18
Load Index
99
Speed Rating
V

Sport

Tire Size
245/40R20
Load Index
95
Speed Rating
W

X

Tire Size
P245/50R18
Load Index
99
Speed Rating
V

X Sport

Tire Size
245/40R20
Load Index
95
Speed Rating
W