2012 Mercedes-Benz S550 Tire Sizes

Factory original equipment (OE) tire specifications.

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4Matic

Tire Size
255/45R18
Load Index
99
Speed Rating
H

4Matic w/Sport Pkg.

Tire Size
255/40R19
Load Index
96
Speed Rating
Y

4Matic w/Sport Pkg.

Tire Size
255/40R19
Load Index
100
Speed Rating
Y

Base

Tire Size
255/45R18
Load Index
99
Speed Rating
H

Base

Front
Tire Size
255/40R19
Load Index
100
Speed Rating
V

Base

Rear
Tire Size
275/40R19
Load Index
101
Speed Rating
V

w/Sport Pkg.

Front
Tire Size
255/40R19
Load Index
100
Speed Rating
Y

w/Sport Pkg.

Rear
Tire Size
275/40R19
Load Index
101
Speed Rating
Y

w/Sport Pkg.

Front
Tire Size
255/35ZR20
Load Index
Speed Rating

w/Sport Pkg.

Rear
Tire Size
275/35ZR20
Load Index
Speed Rating