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Tyre lettering
⇒
Fig. 240
(example)
RADIAL TUBELESS
⑰
P 195 / 65 R 15 XL
⑱
MAX LOAD 615 KG
⑲
(1235 LBS)
SIDEWALL 1 PLY
RAYON
TREAD 4 PLIES
⑳
1 RAYON + 2 STEEL +
1 NYLON
The tyre lettering is located on both sides. Certain labels may only be found on one side of the tyre,
e.g. tyre identification number and manufacturing date.
Any further numbers and letters are internal codes used by the tyre manufacturer or
country-specific denotations.
Low-profile tyres
Low-profile tyres have a wider tread surface, larger rim diameter and lower side walls than
⇒
conventional wheel/tyre combinations
and precision. They may however result in a less comfortable ride on uneven road surfaces and
tracks.
Tyres with directional tread pattern
An arrow on the tyre sidewall indicates the direction of rotation on tyres with directional tread. The
direction of rotation must be observed in all cases. This guarantees the best possible running
characteristics.
If, however, the tyre is fitted in the opposite direction to the tread pattern, you must take more care
when driving as the tyre is now no longer being used according to its designation. The tyres must
be replaced as quickly as possible or be fitted with the tread in the correct direction.
Asymmetrical tyres
Asymmetrical tyres take into account the differing behaviour of the inner and outer areas of the
tread pattern. The sidewalls of asymmetrical tyres are marked to indicate "inside" or "outside".
Maintain the correct tyre positioning on the wheel rim.
Tyre load
The load capacity index indicates how many kilograms can be loaded onto an individual tyre (tyre
load).
Examples:
78425 kg81462 kg83487
kg85515kg87545kg88560kg91615kg92630kg93650kg95690kg97730kg99775kg100800kg101825kg102850kg103875kg104900kg
Speed index
The speed index indicates the maximum permitted speed that may be driven when particular
wheels are fitted.
Pmax. 150km/h (93mph)Qmax. 160km/h (99mph)Rmax. 170km/h (106mph)Smax. 180km/h
(112mph)Tmax. 190km/h (118mph)Umax. 200km/h (125mph)Hmax. 210km/h (130mph)
Vmax. 240km/h (149mph)Wmax. 270km/h (168mph)Ymax. 300km/h (186mph)Zover 240km/h
(149mph)
Some tyre manufacturers use the code ZR for tyres with a highest permitted speed of over 240km/h
(149mph).
a)
The TIN is the tyre serial number.
Meaning
EC regulations are denoted with e. This is followed by the
number of the type approval certificate.
Tubeless radial tyres.
Size designation:
P
Identification for passenger vehicle.
195
Tyre width from wall to wall in mm.
65
Height/width ratio in %.
R
Tyre construction: radial.
15
Rim diameter in inches.
XL
Heavy-duty tyres (extra load tyres).
US load data for the maximum load per wheel.
Data on the tyre carcass components:
1 ply of rayon (artificial silk).
Data on the tread surface components:
In the example there are 4 plies under the tread surface:
1 ply of rayon (artificial silk), 2 steel belt plies and 1 nylon
ply.
. Low-profile tyres can improve the vehicle's handling
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