- 225 - tire width in mm
- 60 - ratio of height to width (the height of the tire cross section is 60% of the width). If there is no special indication of the ratio of transverse dimensions (e.g. 195 R 14), then we are talking about the normal ratio of height and width, which for radial tires is 82%.
- R - radial design (radial tire).
- 15 is the rim diameter in inches.
- 96 - characteristic of the permissible load.
Attention: If the designation M + S is between the numbers 15 and 96, then we are talking about a tire with a winter tread pattern.
- V is the letter designation of the permissible maximum speed. The speed designation letter is at the end of the tire size designation. The speed symbols are valid for both summer and winter tyres.
Letter designation of speed
Tire manufacturing date
The date of manufacture of the tire is indicated in the manufacturer's code.
Example: DOT CUL2 UMB 3000 TUBELESS
- DOT - Departament of Transportation (US Department of Transportation)
- CU - manufacturer's abbreviation
- L2 - tire size or tire design
- 3000 is the date of manufacture. 30th week 2000
Note: If instead of a 4-digit number, a 3-digit number followed by a <| symbol is indicated, then this indicates that the tire was manufactured in the last decade. Designation 509 <| for example, it should read: 50th week of 1999.
- TUBELESS - tubeless tire (TUBETYPE - tube tire)
Attention: Since 10/98, new tires must additionally have an ECE test number on the sidewall (European Economic Commission). This number indicates that the tires comply with the ECE standard. Tires manufactured from 10/98 without an ECE number are not approved for use.
An example of the designation of a disc wheel: 7J x 15 H2
- 7 - rim width in inches
- J - letter designation of the height and outline of the rim flange (B - lower rim flange height)
- x - letter designation of a one-piece deep rim
- 15 - rim diameter in inches
- H2 - the rim profile has a hump on the outer and inner sides