8.3. Designation of tires

Marking of tires
195 – tire width in mm;
/70 – height relation to width (height of a cross-section of the tire makes 70% of width);
N – a class of speed, N: to 210 km/h (on
new tires more on this place it is not designated);
R – radial type of production (brekerny tire);
14 – diameter of a rim in inches;
89 – designation of loading capacity;
N – alphabetic reference of admissible speed limit
Prevention

If between 14 and 81 costs designation S, then it is about the tire with a winter protector.

If there is no special designation of the relation of a cross-section, for example 175 R 14, then it is about a "normal" ratio of height to width. It at brekerny tires makes 82%.

Alphabetic reference of speed stands behind the tire size. Symbols of speed matter both for summer, and for winter tires.

The additional designation "reinforced" – the tire of the strengthened execution.

Alphabetic reference of speed
Alphabetic reference
Admissible speed limit, km/h
M
130
N
140
Р
150
Q
160
R
170
S
180
T
190
N
210

Date of production of the tire

Date of production of the tire is installed on the tire in a code of the manufacturer.

Example:

DOT CUL2 of UM8 421 TUBELESS

DOT – Department of Transportation (The ministry of road transport VS);
CU – the reduced designation of the producer of the tire;
L2 – the tire size;
UM – execution of the tire;
421 – date of production, 42nd week of production of 1991;
TUBELESS – the tubeless tire (TYBETYPE – the chamber tire).