195 - tire width in mm
/70 - height to width ratio (the height of the tire cross-section is 70% of the width).
If there is no special indication of the ratio of transverse dimensions (e.g. 155 R 13), then we are talking about the normal ratio of height and width, which for radial tires is 82%.
R - radial construction (radial tire)
14 - rim diameter in inches.
89 - permissible load characteristic. Note: If there is an M + S designation between the numbers 14 and 89, then we are talking about a tire with a winter tread pattern.
H - letter designation of the permissible maximum speed; H: up to 210 km/h.
The letter speed designation is given after the tire size designation. The speed designation symbols are valid for both summer and winter tires.
Letter designation of speed
| Letter designation | Permissible maximum speed, km/h |
| Q | 160 |
| S | 180 |
| T | 190 |
| H | 210 |
| V | 240 |
| W | 270 |
Please note: If the word reinforced appears at the end of the tyre designation, then this refers to a reinforced tyre, for example for Van and Transporter vehicles.
Date of tire manufacture
The date of manufacture is indicated on the tire in the manufacturer's code.
Example: DOT CUL2 UM8 5000 TUBELESS
- DOT - Department of Transportation
- CU - manufacturer's abbreviation
- L2 - tire size
- UM8 - bus design
- 5000 - production date - 50th week of 2000
Note: If instead of a 4-digit number a 3-digit number is specified, followed by a symbol, then this means that the tire was manufactured in the last decade. Designation 509
Please note: Since 10/98 new tyres must additionally have an ECE (European Economic Commission) test number on the sidewall. This number indicates that the tyres comply with the ECE standard. Tyres manufactured since 10/98 without an ECE number do not have approval for use.
Disc wheel designation
Example: 6Jx14
- 6 - rim width in inches
- J - letter designation of the height and contours of the rim flange (B - low rim shape)
- x - letter designation of a solid deep rim
- 14 - rim seat diameter in inches
The original version can be found on the website: Fordbook.ru