What is standing on the side of a tyre?
The sidewall of a tyre contains a wealth of information about the construction and characteristics of a tyre. Below we explained the meaning on the different parts of the tyre.
- Tyre size
215 = tyre width in mm
/45 = height/width ratio in %
R = radial construction
17 = bead- or rim diameter in inches
91 = load index
V = speed index
XL = code to indicate that the tyre is stronger than other tyres in the same size. The symbol replaces the indication ‘reinforced’.
- Factory or brand name
- Pattern or tyre type
- Radial tyre
- Tubeless version
- M+S (mud and snow). In addition to M+S, many tyres carry the snowflake symbol (but this is not mandatory).
- Date of manufacture (41st week 2008)
- E-certificate number
- Country of origin
- DOT (Department of Transport)
- DOT-factory code
- Specification of maximum tyre pressure and tyre load (valid in USA)
- Indication of the actual number of layers and used materials
- TWI (Tread Wear Indicators). Indication of the position of the wear indicators