Volvo XC 90 Owner's Manual page 473

Speed rating
Each tyre can withstand a certain maximum
speed. Tyre speed rating, SS (Speed Symbol),
must at least correspond with the car's top
speed. The table below shows the maximum per-
mitted speed for each speed rating (SS). The
only exception to these regulations is winter tyres
25
, where a lower speed rating may be used. If
such a tyre is chosen, the car must not be driven
faster than the speed rating of the tyre (for exam-
ple, class Q can be driven at a maximum of
160 km/h). Traffic regulations determine how
fast a car can be driven, not the speed rating of
the tyres.
NOTE
The maximum permitted speed is specified in
the table.
Q 160 km/h (used only on winter tyres)
T 190 km/h
H 210 km/h
V 240 km/h
W 270 km/h
Y 300 km/h
Both those with metal studs and those without.
25
WARNING
The lowest permitted load index (LI) and
speed rating (SS) for the tyres for each
respective engine variant are shown in the
car's registration document. If a tyre with too
low a load index or speed rating is used, it
may overheat and be damaged.
Related information
•
Tyres (p. 448)
•
Size designation for wheel rim (p. 470)
•
Approved tyre pressures (p. 535)
WHEELS AND TYRES
471