EN ISO 4210-4:2023

SLOVENSKI STANDARD
01-april-2023
Nadomešča:
SIST EN ISO 4210-4:2014
Kolesa - Varnostne zahteve za kolesa - 4. del: Preskusne metode za zavore (ISO
4210-4:2023)
Cycles - Safety requirements for bicycles - Part 4: Braking test methods (ISO 4210-
4:2023)
Fahrräder - Sicherheitstechnische Anforderungen an Fahrräder - Teil 4: Prüfverfahren
für Bremsen (ISO 4210-4:2023)
Cycles - Exigences de sécurité pour les bicyclettes - Partie 4: Méthodes d'essai de
freinage (ISO 4210-4:2023)
Ta slovenski standard je istoveten z: EN ISO 4210-4:2023
ICS:
43.150 Kolesa Cycles
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 4210-4
EUROPEAN STANDARD
NORME EUROPÉENNE
January 2023
EUROPÄISCHE NORM
ICS 43.150 Supersedes EN ISO 4210-4:2014
English Version
Cycles - Safety requirements for bicycles - Part 4: Braking
test methods (ISO 4210-4:2023)
Cycles - Exigences de sécurité pour les bicyclettes - Fahrräder - Sicherheitstechnische Anforderungen an
Partie 4: Méthodes d'essai de freinage (ISO 4210- Fahrräder - Teil 4: Prüfverfahren für Bremsen (ISO
4:2023) 4210-4:2023)
This European Standard was approved by CEN on 13 January 2023.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4210-4:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 4210-4:2023) has been prepared by Technical Committee ISO/TC 149 "Cycles"
in collaboration with Technical Committee CEN/TC 333 “Cycles” the secretariat of which is held by UNI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by July 2023, and conflicting national standards shall be
withdrawn at the latest by July 2023.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 4210-4:2014.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 4210-4:2023 has been approved by CEN as EN ISO 4210-4:2023 without any
modification.
INTERNATIONAL ISO
STANDARD 4210-4
Second edition
2023-01
Cycles — Safety requirements for
bicycles —
Part 4:
Braking test methods
Cycles — Exigences de sécurité pour les bicyclettes —
Partie 4: Méthodes d'essai de freinage
Reference number
ISO 4210-4:2023(E)
ISO 4210-4:2023(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. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 4210-4:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test methods . 1
4.1 Brake lever grip dimensions . 1
4.1.1 Test method for the brake lever similar to type A or type B . 1
4.1.2 Test method for the brake lever similar to type C . 3
4.2 Brake levers — Position of applied force . 5
4.2.1 Type A and B brake levers . 5
4.2.2 Type C brake levers . 5
4.3 Brake-block and brake-pad assemblies — Security test . 6
4.4 Hand-operated braking-system — Strength test . 6
4.5 Back-pedal braking system — Strength test . 7
4.6 Braking performance . 7
4.6.1 Test bicycle . 7
4.6.2 Secondary brake levers . 7
4.6.3 Track test method . 8
4.6.4 Back-pedal brake linearity test . 17
4.6.5 Machine test method . 17
4.7 Brakes — Heat-resistance test .23
4.7.1 Drag test .23
4.7.2 Brake performance measurement after drag test . . 24
Annex A (informative) Explanation of the method of least squares for obtaining the line of
best fit and ±20 % limit lines for braking performance linearity .26
Annex B (informative) Method of measuring braking distance with different lever forces .29
Annex C (informative) How to derive the total braking energy for brake heat resistance test .31
iii
ISO 4210-4:2023(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 149, Cycles, Subcommittee SC 1, Cycles
and major sub-assemblies, in collaboration with the European Committee for Standardization (CEN)
Technical Committee CEN/TC 333, Cycles, in accordance with the Agreement on technical cooperation
between ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 4210-4:2014), which has been technically
revised.
The main changes are as follows:
— improvement of 4.1.2;
— addition of test temperature requirement in 4.6.3 and 4.6.5;
— change in the method of calculating the braking distance in 4.6.3;
— addition of rolling resistance requirement and cooling requirement in 4.6.5.7;
— change in the test method to no cooling air of 4.7;
— addition of Annex B and Annex C.
A list of all parts in the ISO 4210 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
ISO 4210-4:2023(E)
Introduction
This document has been developed in response to the demand throughout the world. The aim is to
ensure that bicycles manufactured in conformity with this document will be as safe as is practically
possible. The tests are designed to ensure the strength and durability of individual parts as well as of
the bicycle as a whole, demanding high quality throughout and consideration of safety aspects from the
design stage onwards.
The scope is limited to safety considerations and has specifically avoided standardization of
components.
If the bicycle should be used on public roads, national regulations apply.
v
SIST EN ISO 42
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