Width
Nominal tyre width in millimetres.
Sizes and markings
of truck tyres
Read the markings.
Compare the right specifications.
01 / TYRE SIZE
315
70
R
22.5
What does 315/70 R22.5 mean?
Aspect ratio
Sidewall height as a percentage of tyre width.
Construction
Radial construction.
Rim
Nominal rim diameter in inches.
Size alone does not determine the axle position or tyre application.
02 / INDICES
Read load and speed together.
Load index
The numerical code indicates the tyre load capacity. Two values may refer to single and dual fitment — check the specification of the exact variant.
Speed symbol
The letter indicates the tyre speed category. Select it together with load capacity and in accordance with the vehicle requirements.
03 / TYRE SIDEWALL
Markings worth knowing.
- 2725
- Date example: week 27 of 2025. The four digits indicate the week and year of manufacture.
- TUBELESS
- A tubeless tyre.
- REGROOVABLE
- The tread can be regrooved. This work must be carried out by a tyre service according to the manufacturer’s instructions for the specific model.
Check seasonal and construction markings for the exact model and size in the manufacturer’s documentation.
04 / EU LABEL
Compare the exact size and variant.
Rolling resistance
Energy efficiency class.
Wet grip
Grip class on wet surfaces.
External rolling noise
Noise class and value in dB.
The label helps compare selected parameters. It does not describe every tyre characteristic.
Materiały: MICHELIN — tyre markings · European Commission — tyre labels.