Dimension Designation For Wheel Rim - Volvo V60 TWIN ENGINE 2019 Owner's Manual

WHEELS AND TYRES
|| 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
2
tyres , where a lower speed rating may be used.
If such a tyre is selected, the car must not be
driven more quickly than the tyre is rated for. For
example, cars with Q rating tyres must be driven
at speeds not exceeding 160 km/h (100 mph).
The road conditions and applicable road traffic
rules determine how quickly the 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 (100 mph) (used only on win-
ter tyres)
T 190 km/h (118 mph)
H 210 km/h (130 mph)
V 240 km/h (149 mph)
Both those with metal studs and those without.
2
546
W 270 km/h (168 mph)
Y 300 km/h (186 mph)
WARNING
The lowest permitted tyre load index (LI) and
speed rating (SS) for the tyres for each
respective engine variant are shown in the
specifications, which can be found in the prin-
ted owner's manual. If a tyre with too low a
load index or speed rating is used, it may
overheat and be damaged.
Related information
Tyres (p. 544)
•

Dimension designation for wheel rim

•
(p. 546)
Approved wheel and tyre sizes (p. 661)
•
Minimum permitted tyre load index and
•
speed rating for tyres (p. 662)
Dimension designation for wheel
rim
Wheel and rim dimensions are designated in
accordance with the examples in the table
below.
The car has an approval for the complete vehicle
with certain combinations of wheel rims and
tyres.
All wheel rims have a dimension designation, for
example: 8Jx18x42.
8 Rim width in inches
J Rim flange profile
18 Rim diameter in inches
42 Off-set in mm (distance from wheel cen-
tre to wheel contact surface against the
hub)
Related information
Tyres (p. 544)
•
Dimension designation for tyre (p. 545)
•
Approved wheel and tyre sizes (p. 661)
•