Tyre markings
What does 3PMSF marking mean on tyres?
What the mountain and snowflake symbol tells you about a tyre.
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Tyre choice, seasons and clear answers.
Articles: 9
Tyre care
DOT code: how to check tyre age?
Learn how to read DOT code and why tyre age is important for your safety.
Tyre markings
What are Run Flat Tyres (RFT)?
Run Flat Tyres (RFT) have reinforced sidewalls that allow you to continue driving up to 80 km at 50 mph even after a complete puncture, giving you time to reach a…
Tyre markings
What do the tire size letters R, B, D, ZR mean?
The letter before the rim diameter (e.g. R16, B15, ZR17) indicates the ISO tire construction. R — radial (~99% of the market), B — bias-belted, D — diagonal, ZR —…
Tyre markings
What do XL, HL and C load markings on tires mean?
XL (Extra Load) is a reinforced tire that carries roughly 10–20% more weight than a standard one. HL (High Load), introduced by ETRTO in 2021 for heavy electric…
Tyre markings
Tyre homologation codes: what do OE markings mean?
Homologation codes (OE - Original Equipment) indicate that the tyre was specifically designed and approved for a particular car manufacturer. These tyres offer optimal…
Tyre markings
What do OWL, RWL and WSW tyre markings mean?
OWL, RWL, WSW and similar abbreviations usually describe tyre sidewall appearance: white letters, a whitewall/white stripe or a black sidewall. They are not load, speed,…
Tyre care
Germans debunk the myths about tyre age
Research by Germany’s motoring club ADAC and the tyre trade association BRV shows that correctly stored tyres keep all their properties for at least five years. Tyres up…
Tyre care
Bridgestone and Michelin comments on tyre age
Both of the world’s biggest tyre makers officially confirm that properly stored tyres retain all their properties for years: ageing is driven by use, not by the…