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Tyres - dimensions
The car's wheels (wheel rims) and tyres have
a certain dimension, see the examples in the
table below.
The car has an approval for the complete
vehicle. This means that certain combinations
of wheels (wheel rims) and tyres are
approved.
The dimensions are stated on all car tyres.
Example of designation: 215/55R16 97W.
215
Tyre width (mm)
55
Ratio between tyre wall height and
tyre width (%)
R
Radial ply
16
Rim diameter in inches (")
97
Codes for the maximum permitted
tyre load, tyre load index (LI)
W
Speed rating for maximum permitted
speed, speed rating (SS). (In this
case 270 km/h.)
WARNING
19-inch wheels must never be used on
cars that are not equipped with the R-
Design or Sport chassis options. The use
of 19-inch wheels on cars with standard
chassis constitutes a safety risk, with a
risk of vehicle damage, and it impairs the
car's driving characteristics.
Related information
•
Tyres - speed ratings (p. 332)
•
Tyres - load index (p. 331)
•
Tyres - direction of rotation (p. 328)
•
Tyres - maintenance (p. 327)
•
Tyres - approved tyre pressures (p. 433)
•
Wheel and wheel rim dimensions (p. 330)
09 Wheels and tyres
Tyres - load index
Load index indicates a tyre's ability to carry a
certain load.
Each tyre has a certain capacity to carry a
load, a load index (LI). The car's weight deter-
mines the load capacity required of the tyres.
Minimum permissible index is indicated in the
load index table.
Related information
•
Tyres - dimensions (p. 331)
•
Tyres - approved tyre pressures (p. 433)
•
Tyres - speed ratings (p. 332)
•
Tyres - maintenance (p. 327)
09
331
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