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Designations on sidewall of tyres with run-flat system (PAX) > < Measuring tread depth
Identification markings on the tyre sidewall
Identification markings on the tyre sidewall
Example: Dunlop SP Sport 9000
   
1 - Size: 215/55 ZR16
q   Designations on PAX tyres → Chapter
2 - Manufacturer (trade name)
3 - Tread designation
4 - Code for tubeless tyres
5 - Radial-ply tyre construction (radially oriented fibres in carcass)
6 - Notes for versions with »rim protection«
7 - Date of manufacture - see Tyre ageing
q   → Chapter
  Note
Retreaded tyres also carry the marking „R“ or „Retreaded“ and the retreading date instead of the date of manufacture.
8 - E number = Approval number. Tyre complies with European Directives/Regulations
q   European Directives/Regulations ECE-R30, EEC92/93 or ECE - R 117
  Note
t  Tyres which comply with EU Regulation ECE - R117 (new road noise limits for tyres) also carry the marking „S“ (for Sound) on the sidewall.
t  For passenger car tyres with a cross sectional width of up to 185 mm: from 1 October 2009 onwards
t  For passenger car tyres with a cross sectional width of between 185 mm and 215 mm: from 1 October 2010 onwards
t  For passenger car tyres with a cross sectional width of over 215 mm: from 1 October 2011 onwards
9 - Country of manufacture - Made in Germany.
10 - Manufacturer's internal tread code
11 - Department of Transportation - the tyre conforms to the U.S. Department of Transportation guidelines
12 - Example: Dunlop SP Sport 9000
DOT- Code ID number for manufacturer's plant, tyre size and tyre model
13 - Maximum permissible load (load index)
q   Table → Chapter
  Note
Where applicable with an additional marking „Reinforced“ or „Extra Load“ or „XL“ for increased tyre load capacity
q   Reinforced, Extra Load tyres → Chapter
14 - Number of plies in the centre of the tread and in the sidewalls and information about the material
15 - Position of TWIs (Tread Wear Indicators)
q   → Anchor.
16 - Tread wear index - abrasion resistance - based on US standard test
17 - Traction rating - evaluation of wet braking capacity A, B or C according to US test
18 - Temperature rating - evaluation of temperature rating A, B or C according to US test
19 - Safety notes for use or fitting of tyre
20 - Reference to ultra lightweight tyre construction, tyres are up to 30% lighter
21 - Specified direction of rotation for tyre
22 - Inmetro designation, required only for Brazil

   
Explanation of tyre dimensions
TyreSpeed1234567
Summer tyresup to 240 km/h19565R1591V-
Winter tyresup to 160 km/h19565R1591QM + S
Winter tyresup to 190 km/h19565R1591TM + S
High-speed tyresfaster than 240 km/h22550ZR1691--

1 - Tyre width
2 - Tyre height to width ratio in %
3 - Code for tyre type „R“ (indicates radial)
4 - Rim diameter designation
5 - Load rating code/load index (LI)
6 - Speed rating code
7 - Winter tyre/code for all-season tyre
  Note
An additional designation required by Audi, e.g. „R01“ and/or „AO“ may also appear on the sidewall. These designations appear on tyres approved by Audi and specially matched to particular Audi models.
  Note
t  Tyres which comply with EU Regulation ECE - R117 (new road noise limits for tyres) also carry the marking „S“ (for Sound) on the sidewall.
t  For passenger car tyres with a cross sectional width of up to 185 mm: from 1 October 2009 onwards
t  For passenger car tyres with a cross sectional width of between 185 mm and 215 mm: from 1 October 2010 onwards
t  For passenger car tyres with a cross sectional width of over 215 mm: from 1 October 2011 onwards
Self supporting tyres (SST) and PAX tyres with run-flat capability have a special marking on the tyre sidewall which differs according to manufacturer.
   

Designations on sidewall of tyres with run-flat system (PAX) > < Measuring tread depth