See also:

Switching on/off
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Tire identification marks
Tire size 255/50 R 19 103 Y 255: nominal width in mm 50: aspect ratio in % R: radial tire code 19: rim diameter in inches 103: load rating, not for ZR tires Y: speed rating, before the R on ZR ...

Customer Relations
At a glance Contact Customer Relations for information on all aspects of your vehicle. ...