2025 BMW Z4 Tire Sizes

Factory original equipment (OE) tire specifications.

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M40i

Front
Tire Size
255/40ZR18
Load Index
95
Speed Rating
(Y)

M40i

Rear
Tire Size
275/40ZR18
Load Index
99
Speed Rating
(Y)

M40i

Front
Tire Size
255/35ZR19
Load Index
96
Speed Rating
(Y)

M40i

Rear
Tire Size
275/35ZR19
Load Index
100
Speed Rating
(Y)

M40i

Front
Tire Size
255/35ZR19
Load Index
96
Speed Rating
(Y)

M40i

Rear
Tire Size
285/30ZR20
Load Index
99
Speed Rating
(Y)

sDrive30i

Front
Tire Size
225/45ZR18
Load Index
95
Speed Rating
(Y)

sDrive30i

Rear
Tire Size
255/40ZR18
Load Index
99
Speed Rating
(Y)

sDrive30i

Front
Tire Size
255/40ZR18
Load Index
95
Speed Rating
(Y)

sDrive30i

Rear
Tire Size
275/40ZR18
Load Index
99
Speed Rating
(Y)

sDrive30i

Front
Tire Size
255/35ZR19
Load Index
96
Speed Rating
(Y)

sDrive30i

Rear
Tire Size
275/35ZR19
Load Index
100
Speed Rating
(Y)