2018 BMW 340i GT xDrive Tire Sizes

Factory original equipment (OE) tire specifications.

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Base

Tire Size
225/50R18
Load Index
99
Speed Rating
V

Base

Front
Tire Size
225/50R18
Load Index
95
Speed Rating
W

Base

Rear
Tire Size
255/45R18
Load Index
99
Speed Rating
W

Base

Tire Size
225/45R19
Load Index
96
Speed Rating
V

Base

Front
Tire Size
225/45R19
Load Index
92
Speed Rating
W

Base

Rear
Tire Size
255/40R19
Load Index
96
Speed Rating
W