# Council Decision of 26 June 2001 on the accession of the European Community to Regulation 108 of the United Nations Economic Commission for Europe concerning the approval for the production of retreaded pneumatic tyres for motor vehicles and their trailers (2001/509/EC), Division 2.21.3.1: The values of the ‘d’ symbols expressed in millimetres are shown below:


Nominal rim diameter code (d)
Value of the ‘d’ symbol expressed in mm
8
9
10
11
12
13
14
203
229
254
279
305
330
356
15
16
17
18
19
381
406
432
457
483
20
21
508
533

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Source: https://www.legislation.gov.uk/eudn/2001/509/attachment/1/division/2./division/2.21.3.1. (the official version)
Page: https://openlegislation.uk/eu-decision-2001-509/attachment-1/division-2./division-2.21.3.1.
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.