ISO 4000-1:2024

FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 4000-1
ISO/TC 31/SC 3
Passenger car tyres and rims —
Secretariat: AFNOR
Voting begins on:
Part 1:
2023-12-13
Tyres (metric series)
Voting terminates on:
2024-02-07
Pneumatiques et jantes pour voitures particulières —
Partie 1: Pneumatiques (série millimétrique)
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 4000-1:2023(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO 2023

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ISO/FDIS 4000-1:2023(E)
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 4000-1
ISO/TC 31/SC 3
Passenger car tyres and rims —
Secretariat: AFNOR
Voting begins on:
Part 1:
Tyres (metric series)
Voting terminates on:
Pneumatiques et jantes pour voitures particulières —
Partie 1: Pneumatiques (série millimétrique)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
RECIPIENTS OF THIS DRAFT ARE INVITED TO
ISO copyright office
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
CP 401 • Ch. de Blandonnet 8
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
CH-1214 Vernier, Geneva
DOCUMENTATION.
Phone: +41 22 749 01 11
IN ADDITION TO THEIR EVALUATION AS
Reference number
Email: copyright@iso.org
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 4000-1:2023(E)
Website: www.iso.org
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
Published in Switzerland
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
ii
  © ISO 2023 – All rights reserved
NATIONAL REGULATIONS. © ISO 2023

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ISO/FDIS 4000-1:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Designation . 1
4.1 Size and construction . 1
4.1.1 Characteristics . 1
4.1.2 Nominal section width . 2
4.1.3 Nominal aspect ratio. 2
4.1.4 Tyre construction code . 2
4.1.5 Nominal rim diameter code . 2
4.2 Service description . 3
4.2.1 General .
...

ISO/DISFDIS 4000-1:2023(E)
ISO/TC 31/SC 3
Secretariat: AFNOR
Date: 2023-03-24
Passenger car tyres and rims — Part 1: Tyres (metric series)
Pneumatiques et jantes pour voitures particulières — Partie 1: Pneumatiques (série
millimétrique)
Thirteenth edition
Date: 2023-11-28

---------------------- Page: 1 ----------------------
ISO/FDIS 4000-1:2023(E)
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no
part of this publication may be reproduced or utilized otherwise in any form or by any means,
electronic or mechanical, including photocopying, or posting on the internet or an intranet, without
prior written permission. Permission can be requested from either ISO at the address below or ISO's
member body in the country of the requester.
ISO Copyright Office
CP 401 • CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland.
ii © ISO 2023 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/FDIS 4000-1:2023(E)
Contents
Foreword . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Designation . 2
4.1 Size and construction . 2
4.1.1 Characteristics . 2
4.1.2 Nominal section width . 2
4.1.3 Nominal aspect ratio . 2
4.1.4 Tyre construction code . 2
4.1.5 Nominal rim diameter code . 2
4.2 Service description . 3
4.2.1 General . 3
4.2.2 Load index . 3
4.2.3 Speed symbol . 3
4.2.4 Speed category . 4
4.3 Other service characteristics . 4
5 Marking . 7
6 Tyre dimensions . 8
6.1 Rounding values . 8
6.2 Calculation of design tyre dimensions . 8
6.2.1 Theoretical rim width, R . 8
th
6.2.2 Measuring rim width code, R . 8
mc
6.2.3 Design tyre section width, S .
...