Note: * ...
The serie "80" dosenīt need contain this symbol
in itīs designation. For example size 215/80 R15 = 215
R15. |
| 265/70 R15 109 Q |
The so called European system of tyres
designation. |
| 265 |
The number gives the width of tyre design
in mm |
| 70 |
The number gives the height of tyre sculpture
in %. In this case, the height of tyre sculpture amounts
to 70 % of 265 mm. |
| R |
Radial. See below. |
| 15 |
The number gives the diameter of rim ,
belonging to a tyre, in inches |
| 109 |
Capacity Index. See below. |
| Q |
Speed Index. See below. |
| 31x10.50 R15 109 Q |
The so called European system of tyres
designation. |
| 31 |
The number in inches gives the height of
an inflated tyre, shod on an appropriate rim. |
| 10.50 |
The number in inches, giving the width
of tyre design. |
| Diagonal |
Describes such tyre casing where the cords
of individual chafing strips reach into the flaps and
are placed at different angles of much less than 90° in
relation to the lengthwise axis of tyre tread. |
| Radial |
Describes such tyre casing where the cords
of individual chafing strips stretch from one flap to
the other and are placed at the angle of approx. 90° in
relation to the lengthwise axis of tyre tread; the tyre
carcass is stabilised by means of a reinforcing belt consisting
of two or more strips made of practically inextensible
cord material. |
| Capacity Index |
The number gives the maximum load a tyre
is able to carry. See the Index Table. |
| Speed Index |
The alphabetical symbol determines the
maximum speed for the tyre to be able to carry the load
determined by the capacity index. |
| Tubeless |
This means that the tyre casing is designed
for use without a tube. |
| M+S, MS, M/S, M&S |
This designates a winter tyre. |
| Retread |
This term designates a retreaded tyre. |
| TWI |
This abbreviation designates the index
of maximum wear and tear of tyre casing in the design |
| MT, M/T |
This abbreviation of the words Mud, Terrain
means that the tyre is designed for use in hard terrain. |
| AT, A/T |
This abbreviation of the words All Terrain
means that, tyre is designed for use in medium-hard terrain. |
| HT, H/T |
This abbreviation of the words Highway,
Terrain means that, tyre is designed for a ride mainly
on the road. |
