195 - tire width in mm
/70 - ratio of height to width (tire cross-sectional height is 70% of the width). If there is no separate information about the ratio of width to height (e.g. 155 R 13), which means it is about "normal"
H - speed class, H: up to 210 km / h (on new tires is not always given).
R - radial design
14 - rim size in inches
89 - bearing capacity parameter
Attention! If between data 14 and 89 there is the designation M + S, we are talking about tires with a winter profile.
H is the designation of the permissible maximum speed. The speed letter is behind the tire size. The speed symbols apply to both summer and winter tyres.
Letter symbols for speed
Letter designation speed, + | Maximum allowable |
Q | 160 km/h |
S | 180 km/h |
T | 190 km/h |
H | 210 km/h |
V | 240 km/h |
Tire manufacturing date
The date of manufacture of the tire is on the tire in the manufacturer's code
Example: DOT CUL2 UM8 412 < TUBELESS
DOT — Departament of Transportation (US Department of Transportation)
CU is an abbreviation for the manufacturer's name
L2 - tire size
UM8 - bus version
412 - date of manufacture - 41st working week 1992
< - symbol of the given decade (from 1990 to 1999)
TUBELESS - tubeless
(TUBETYPE - tube tire)