07 Wheels and tyres
General
07
305
Wheel (rim) dimensions
Wheels (rims) have a designation of dimen-
sions, for example: 7Jx16x50.
7
Rim width in inches
J
Rim flange profile
16
Rim diameter in
inches
50
Off-set in mm (dis-
tance from wheel
centre to wheel con-
tact surface against
the hub)
Tyre dimensions
The dimensions are stated on all car tyres.
Example of designation:
225/50R17 98W.
225
Tyre width (mm)
50
Ratio between tyre wall height and
tyre width (%)
R
Radial ply
17
Rim diameter in inches (")
98
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).
Load index
Each tyre has a certain capacity to carry a load,
a load index (LI). The car's weight determines
the load capacity required of the tyres. Mini-
mum permitted index is specified in the table,
see page 373.
Speed ratings
Each tyre can withstand a certain maximum
speed, a speed rating (Speed Symbol; SS).
Tyre speed class must at least correspond with
the car's top speed. Minimum permitted speed
rating is specified in the table, see page 373.
The only exception to these conditions is win-
ter tyres (both those with metal studs and those
without), 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 example, 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
It is the maximum permitted speed that is
stated 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
WARNING
The car must be fitted with tyres which have
the same or a higher load index (LI) and
speed rating (SS) than specified. If a tyre
with too low a load index or speed rating is
used, it may overheat.
Summary of Contents for 2012 S80
Page 1: ...VOLVO S80 Owners Manual Web Edition ...
Page 2: ......
Page 15: ...Introduction 13 ...
Page 17: ...SAFETY ...
Page 43: ...01 Safety 01 41 ...
Page 45: ...LOCKS AND ALARM ...
Page 65: ...02 Locks and alarm 02 63 ...
Page 67: ...YOUR DRIVING ENVIRONMENT ...
Page 70: ...03 Your driving environment Instruments and controls 03 68 Right hand drive ...
Page 97: ...03 Your driving environment Lighting 03 95 Templates for halogen headlamps ...
Page 141: ...03 Your driving environment 03 139 ...
Page 143: ...COMFORT AND DRIVING PLEASURE ...
Page 221: ...INFOTAINMENT SYSTEM ...
Page 279: ...05 Infotainment system 05 277 ...
Page 281: ...DURING YOUR JOURNEY ...
Page 301: ...06 During your journey 06 299 ...
Page 303: ...WHEELS AND TYRES ...
Page 317: ...07 Wheels and tyres 07 315 ...
Page 319: ...MAINTENANCE AND SERVICE ...
Page 342: ...08 Maintenance and service Fuses 08 340 Engine compartment ...
Page 357: ...08 Maintenance and service 08 355 ...
Page 359: ...SPECIFICATIONS ...
Page 360: ...09 Specifications Type designations 09 358 Label location ...
Page 389: ...09 Specifications Type approval 09 387 Country Bot swana Croatia ...
Page 393: ...09 Specifications 09 391 ...
Page 405: ......
Page 406: ...Kdakd 8Vg 8dgedgVi dc 51 OHMJTI 5 1SJOUFE JO 4XFEFO zUFCPSH PQZSJHIU 7PMWP BS PSQPSBUJPO ...