195 = nominal tire width in mm
/70 = the ratio of the profile height to its width in percent (in this case, this ratio is 70%). If there is no data on this ratio, (for example 155 R13), then we are talking about a "normal" ratio. It is 82% for radial tires.
H = speed class, H: up to 210 km/h (new tires do not always have this data)
R = radial
14 = rim diameter in inches
89 = load index
Please note: If there is an M+S designation between the numbers 14 and 89, then we are talking about tires with a winter profile.
H = speed limit class.
The speed class is at the end of the tire size designation. It is valid for both summer and winter tires.
Speed limit class
The publication is taken from the website toyotaman.ru
Date of tire manufacture
The date of manufacture of the tire is indicated on the tire in the form of a manufacturer's code.
For example: DOT CUL2 UM8 312 < TUBELESS
DOT = Department of Transportation (in the US - the Department of Transportation)
CU = manufacturer's designation
L2 = tire size
UM8 = busbar execution
312 = date of manufacture = 31st working week 1992.
< = symbol representing a decade (1990 to 1999.)
TUBELESS = tubeless (TUBETYPE = tube tire)