Cycles -- Safety requirements for bicycles

ISO 4210-5:2014 specifies the steering test methods for ISO 4210‑2.

Cycles -- Exigences de sécurité des bicyclettes

ISO 4210-5:2014 spécifie les méthodes d'essai de la direction pour l'ISO 4210‑2.

General Information

Status
Published
Publication Date
22-Jun-2014
Current Stage
6060 - International Standard published
Start Date
22-May-2014
Completion Date
23-Jun-2014
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INTERNATIONAL ISO
STANDARD 4210-5
First edition
2014-07-01
Corrected version
2015-02-01
Cycles — Safety requirements for
bicycles —
Part 5:
Steering test methods
Cycles — Exigences de sécurité des bicyclettes —
Partie 5: Méthodes d’essai de guidage
Reference number
ISO 4210-5:2014(E)
ISO 2014
---------------------- Page: 1 ----------------------
ISO 4210-5:2014(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2014

All rights reserved. Unless otherwise specified, 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
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2014 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 4210-5:2014(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 Handlebar grips and plugs ............................................................................................................................................................ 1

4.1.1 Freezing test......................................................................................................................................................................... 1

4.1.2 Hot water test ..................................................................................................................................................................... 2

4.2 Handlebar stem — Lateral bending test ........................................................................................................................... 2

4.3 Handlebar and stem assembly — Lateral bending test ....................................................................................... 3

4.4 Handlebar stem — Forward bending test ....................................................................................................................... 5

4.4.1 Test method for stage 1 .............................................................................................................................................. 5

4.4.2 Test method for stage 2 .............................................................................................................................................. 7

4.5 Handlebar to handlebar stem — Torsional security test ................................................................................... 7

4.6 Handlebar stem to fork steerer — Torsional security test ............................................................................... 7

4.7 Bar end to handlebar — Torsional security test ........................................................................................................ 8

4.8 Aerodynamic extensions to handlebar — Torsional security test .............................................................. 9

4.9 Handlebar and stem assembly — Fatigue test .........................................................................................................10

4.9.1 Test method for city and trekking, young adult, and mountain bicycles ......................10

4.9.2 Test method for racing bicycles .......................................................................................................................12

© ISO 2014 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 4210-5:2014(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 on the meaning of ISO specific terms and expressions related to conformity

assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers

to Trade (TBT) see the following URL: Foreword - Supplementary information

The committee responsible for this document is ISO/TC 149, Cycles, Subcommittee SC 1, Cycles and major

sub-assemblies.

This first edition of ISO 4210-5, together with ISO 4210-1, ISO 4210-2, ISO 4210-3, ISO 4210-4,

ISO 4210-6, ISO 4210-7, ISO 4210-8, and ISO 4210-9, cancels and replaces ISO 4210:1996, which has

been technically revised.

ISO 4210 consists of the following parts, under the general title Cycles — Safety requirements for bicycles:

— Part 1: Terms and definitions

— Part 2: Requirements for city and trekking, young adult, mountain and racing bicycles

— Part 3: Common test methods
— Part 4: Braking test methods
— Part 5: Steering test methods
— Part 6: Frame and fork test methods
— Part 7: Wheels and rims test methods
— Part 8: Pedals and drive system test methods
— Part 9: Saddles and seat-post test methods

This corrected version of ISO 4210-5:2014 incorporates a change in Figure 6 and a correction of the

format of all tables.
iv © ISO 2014 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 4210-5:2014(E)
Introduction

This International Standard has been developed in response to demand throughout the world, and the

aim has been to ensure that bicycles manufactured in compliance with this International Standard

will be as safe as is practically possible. The tests have been 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 has been limited to safety considerations, and has specifically avoided standardization

of components.
If the bicycle is to be used on public roads, national regulations apply.
© ISO 2014 – All rights reserved v
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 4210-5:2014(E)
Cycles — Safety requirements for bicycles —
Part 5:
Steering test methods
1 Scope
This part of ISO 4210 specifies the steering test methods for ISO 4210-2.
2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

ISO 4210-1, Cycles – Safety requirements for bicycles – Part 1: Terms and definitions

ISO 4210-2:2014, Cycles – Safety requirements for bicycles – Part 2: Requirements for city and trekking,

young adult, mountain and racing bicycles

ISO 4210-3:2014, Cycles – Safety requirements for bicycles – Part 3: Common test methods

3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 4210-1 apply.

4 Test methods
4.1 Handlebar grips and plugs
4.1.1 Freezing test

Immerse the handlebar, with handlebar grips or plugs fitted, in water at room temperature for 1 h and

then place the handlebar in a freezer until the handlebar is at a temperature lower than −5 °C. Remove

the handlebar from the freezer and allow the temperature of the handlebar to reach −5 °C, and then

apply a force of 70 N to the grip or plug in the loosening direction as shown in Figure 1. Maintain the

force until the temperature of the handlebar has reached +5 °C. It shall be permitted to create a hole in

the plug to allow for the testing fixture to be fitted so long as the hole does not affect the seat of the plug

in the handlebar and the fixture does not contact the handlebar during the test.
© ISO 2014 – All rights reserved 1
---------------------- Page: 6 ----------------------
ISO 4210-5:2014(E)
Key
1 handlebar grip
2 handlebar
3 drawing attachment
4 hooking ring
5 clearance
NOTE The hooking ring can be divided.
Figure 1 — Example of handlebar grip drawing attachment
4.1.2 Hot water test

Immerse the handlebar, with handlebar grips fitted, in hot water of +60 °C ± 2 °C for 1 h. Remove the

handlebar from the hot water, allow the handlebar to stabilize at ambient temperature for 30 min, and apply

a force of 100 N to the grip in the loosening direction as shown in Figure 1. Maintain this force for 1 min.

4.2 Handlebar stem — Lateral bending test

For stems which have a quill for insertion into a fork steerer, clamp the quill securely in a fixture to

the minimum insertion depth as specified in ISO 4210-2:2014, 4.7.3, or for stem extensions which

clamp directly on to an extended fork steerer, attach the extension to a fork steerer according to the

manufacturer’s instructions and clamp this fork steerer securely in a fixture to the appropriate height.

Assemble a test bar to the stem, and apply a force of F at a distance of d from the axis of the stem as

shown in Table 1 and Figure 2. Maintain this force for 1 min.
Table 1 — Forces and distances on handlebars
City and trekking
Bicycle type Young adult bicycles Mountain bicycles Racing bicycles
bicycles
Force, F
600 600 1 000 1 000
Distance, d
300 300 300 230
2 © ISO 2014 – All rights reserved
---------------------- Page: 7 ----------------------
ISO 4210-5:2014(E)
a) Combined stem and quill b) Stem extension
Key
1 minimum insertion depth
2 clamping block
3 solid-steel bar
Figure 2 — Handlebar stem — Lateral bending test
4.3 Handlebar and stem assembly — Lateral bending test

Assemble the handlebar and stem in accordance with the manufacturer’s instructions and, unless the

handlebar and stem are permanently connected, e.g. by welding or brazing, align the grips portion of the

handlebar in a plane perpendicular to the stem axis [see Figure 3 a) or Figure 4 a)]. For stems which have

a quill for insertion into a fork steerer, clamp the quill securely in a fixture to the minimum insertion

depth, or for stem extensions which clamp directly on to an extended fork steerer, attach the extension

to a fork steerer according to the manufacturer’s instructions and clamp this fork steerer securely in a

fixture to the appropriate height. Apply a force of F (see Table 2) at a distance of 50 mm from the free

end of the handlebar and parallel to the axis of the fork steerer as shown in Figures 3 or 4. Maintain this

force for 1 mi
...

DRAFT INTERNATIONAL STANDARD ISO/DIS 4210-5
ISO/TC 149/SC 1 Secretariat: JISC
Voting begins on Voting terminates on
2012-11-08 2013-04-08

INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION

Cycles — Safety requirements for bicycles —
Part 5:
Steering test methods
Cycles — Exigences de sécurité des bicyclettes —
Partie 5: Méthodes d'essai de guidage
ICS 43.150
ISO/CEN PARALLEL PROCESSING

This draft has been developed within the International Organization for Standardization (ISO), and

processed under the ISO-lead mode of collaboration as defined in the Vienna Agreement.

This draft is hereby submitted to the ISO member bodies and to the CEN member bodies for a parallel

five-month enquiry.

Should this draft be accepted, a final draft, established on the basis of comments received, will be

submitted to a parallel two-month approval vote in ISO and formal vote in CEN.

To expedite distribution, this document is circulated as received from the committee

secretariat. ISO Central Secretariat work of editing and text composition will be undertaken at

publication stage.

Pour accélérer la distribution, le présent document est distribué tel qu'il est parvenu du

secrétariat du comité. Le travail de rédaction et de composition de texte sera effectué au

Secrétariat central de l'ISO au stade de publication.

THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE

REFERRED TO AS AN INTERNATIONAL STANDARD UNTIL PUBLISHED AS SUCH.

IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT

INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STANDARDS TO

WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS.

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 SUPPORTING DOCUMENTATION.
© International Organization for Standardization, 2012
---------------------- Page: 1 ----------------------
ISO/DIS 4210-5
Copyright notice

This ISO document is a Draft International Standard and is copyright-protected by ISO. Except as permitted

under the applicable laws of the user’s country, neither this ISO draft nor any extract from it may be

reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic,

photocopying, recording or otherwise, without prior written permission being secured.

Requests for permission to reproduce should be addressed to either ISO at the address below or ISO’s

member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Reproduction may be subject to royalty payments or a licensing agreement.
Violators may be prosecuted.
ii © ISO 2012 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/DIS 4210-5
Contents Page

Foreword ............................................................................................................................................................ iv

Introduction ......................................................................................................................................................... v

1 Scope ...................................................................................................................................................... 1

2 Normative references ............................................................................................................................ 1

3 Terms and definitions ........................................................................................................................... 1

4 Test methods ......................................................................................................................................... 1

4.1 Handlebar grips and plugs ................................................................................................................... 1

4.1.1 Freezing test .......................................................................................................................................... 1

4.1.2 Hot water test ......................................................................................................................................... 2

4.2 Handlebar-stem – Lateral bending test ............................................................................................... 2

4.3 Handlebar and stem assembly – Lateral bending test ...................................................................... 3

4.4 Handlebar-stem – Forward bending test ............................................................................................. 5

4.4.1 Test method for Stage 1 ........................................................................................................................ 5

4.4.2 Test method for Stage 2 ........................................................................................................................ 6

4.5 Handlebar to handlebar-stem – Torsional security test .................................................................... 7

4.6 Handlebar-stem to fork steerer – Torsional security test ................................................................. 9

4.7 Bar-end to handlebar – Torsional security test ................................................................................ 10

4.8 Aerodynamic extensions to handlebar – Torsional security test .................................................. 11

4.9 Handlebar and stem assembly – Fatigue test .................................................................................. 12

4.9.1 Test method for city & trekking, young adult and mountain bicycles ........................................... 12

4.9.2 Test method for racing bicycles ........................................................................................................ 13

© ISO 2012 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO/DIS 4210-5
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.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards

adopted by the technical committees are circulated to the member bodies for voting. Publication as an

International Standard requires approval by at least 75 % of the member bodies casting a vote.

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.

ISO 4210-5 was prepared by Technical Committee ISO/TC 149, Cycles, Subcommittee SC 1, Cycles and

major sub-assemblies.

ISO 4210 consists of the following parts, under the general title Cycles — Safety requirements for bicycles:

 Part 1: Terms and definitions

 Part 2: Requirements for city & trekking, young adult, mountain and racing bicycles

 Part 3: Common test methods
 Part 4: Braking test methods
 Part 5: Steering test methods
 Part 6: Frame and fork test methods
 Part 7: Wheel and rim test methods
 Part 8: Pedal and drive system test methods
 Part 9: Saddle and seat-post test methods
iv © ISO 2012 – All rights reserved
---------------------- Page: 4 ----------------------
ISO/DIS 4210-5
Introduction

This International Standard has been developed in response to demand throughout the world, and the aim

has been to ensure that bicycles manufactured in compliance with it will be as safe as is practically possible.

The tests have been 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 has been limited to safety considerations, and has specifically avoided standardisation of

components.

If the bicycle is to be used on public roads, national regulations apply and it may be equipped with a lighting

system.
© ISO 2012 – All rights reserved v
---------------------- Page: 5 ----------------------
DRAFT INTERNATIONAL STANDARD ISO/DIS 4210-5
Cycles — Safety requirements for bicycles —
Part 5:
Steering test methods
1 Scope
This part of ISO 4210 specifies the steering test methods for ISO 4210-2.
2 Normative references

The following referenced documents are indispensable for the application of this document. For dated

references, only the edition cited applies. For undated references, the latest edition of the referenced

document (including any amendments) applies.

ISO 4210-1:– , Cycles – Safety requirements for bicycles – Part 1: Terms and definitions

ISO 4210-2:– , Cycles – Safety requirements for bicycles – Part 2: Requirements for city & trekking, young

adult, mountain and racing bicycles

ISO 4210-3:– , Cycles – Safety requirements for bicycles – Part 3: Common test methods

3 Terms and definitions

For the purposes of this document, the terms and definitions are given in ISO 4210-1.

4 Test methods
4.1 Handlebar grips and plugs
4.1.1 Freezing test

Immerse the handlebar, with handlebar grips or plugs fitted, in water at room temperature for one hour and

then place the handlebar in a freezer until the handlebar is at a temperature lower than -5 °C. Remove the

handlebar from the freezer and allow the temperature of the handlebar to reach -5 °C, and then apply a force

of 70 N to the grip or plug in the loosening direction as shown in Figure 1. Maintain the force until the

temperature of the handlebar has reached +5 °C.

NOTE It shall be permitted to create a hole in the plug to allow for the testing fixture to be fitted so long as the hole

does not affect the seat of the plug in the handlebar and the fixture does not contact the handlebar during the test.

1) To be published.(Revision of ISO 4210:1996)
2) To be published.(Revision of ISO 4210:1996)
3) To be published. (Revision of ISO 4210:1996)
© ISO 2012 – All rights reserved 1
---------------------- Page: 6 ----------------------
ISO/DIS 4210-5
Key
1 Handlebar grip
2 Handlebar
3 Drawing attachment
4 Hooking ring
5 Clearance
NOTE The hooking ring can be divided.
Figure 1 — Example of handlebar grip drawing attachment
4.1.2 Hot water test

Immerse the handlebar, with handlebar grips fitted, in hot water of +60 °C ± 2 °C for one hour. Remove the

handlebar from the hot water, allow the handlebar to stabilise at ambient temperature for 30 min, apply a force

of 100 N to the grip in the loosening direction as shown in Figure 1. Maintain this force for 1 min.

4.2 Handlebar-stem – Lateral bending test

For stems which have a quill for insertion into a fork steerer, clamp the quill securely in a fixture to the

minimum insertion depth (see ISO 4210-2:–, 4.6.3), or, for stem extensions which clamp directly on to an

extended fork-stem attach the extension to a fork-stem according to the manufacturer's instructions and clamp

this fork steerer securely in a fixture to the appropriate height. Assemble a test-bar to the stem, and apply a

force of F at a distance of d from the axis of the stem as shown in Table 1 and Figure 2. Maintain this force

for 1 min.
2 © ISO 2012 – All rights reserved
---------------------- Page: 7 ----------------------
ISO/DIS 4210-5
Table 1 — Forces and distances on handlebars
City and trekking Young adult
Bicycle type Mountain bicycles Racing bicycles
bicycles bicycles
Force, F
600 600 1 000 1 000
Distance, d
300 300 300 230
a) Combine stem and quill b) Stem extension
Key
1 Minimum insertion depth
2 Clamping block
3 Solid steel bar
Figure 2 — Handlebar-stem: lateral bending test
4.3 Handlebar and stem assembly – Lateral bending test

Assemble the handlebar and stem in accordance with the manufacturer's instructions and, unless the

handlebar and stem are permanently connected, e.g. by welding or brazing, align the grips portion of the

handlebar in a plane perpendicular to the stem axis (see Figure 3 a) or Figure 4 a)). For stems which have a

quill for insertion in to a fork steerer, clamp the quill securely in a fixture to the minimum insertion depth, or, for

stem extensions which clamp directly on to an extended fork steerer attach the extension to a fork steerer

according to the manufacturer's instructions and clamp this fork steerer securely in a fixture to the appropriate

height. Apply a forc
...

NORME ISO
INTERNATIONALE 4210-5
Première édition
2014-07-01
Cycles — Exigences de sécurité des
bicyclettes —
Partie 5:
Méthodes d’essai de guidage
Cycles — Safety requirements for bicycles —
Part 5: Steering test methods
Numéro de référence
ISO 4210-5:2014(F)
ISO 2014
---------------------- Page: 1 ----------------------
ISO 4210-5:2014(F)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2014, Publié en Suisse

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni utilisée

sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie, l’affichage sur

l’internet ou sur un Intranet, sans autorisation écrite préalable. Les demandes d’autorisation peuvent être adressées à l’ISO à

l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2014 – Tous droits réservés
---------------------- Page: 2 ----------------------
ISO 4210-5:2014(F)
Sommaire Page

Avant-propos ..............................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Domaine d’application ................................................................................................................................................................................... 1

2 Références normatives ................................................................................................................................................................................... 1

3 Termes et définitions ....................................................................................................................................................................................... 1

4 Méthodes d’essai .................................................................................................................................................................................................. 1

4.1 Poignées et bouchons de guidon ............................................................................................................................................. 1

4.1.1 Essai de gel-dégel ............................................................................................................................................................ 1

4.1.2 Essai à l’eau chaude ....................................................................................................................................................... 2

4.2 Potence de guidon — Essai de flexion latérale ............................................................................................................ 2

4.3 Ensemble guidon et potence — Essai de flexion latérale ................................................................................... 3

4.4 Potence de guidon — Essai de flexion vers l’avant .................................................................................................. 5

4.4.1 Méthode d’essai pour l’étape 1 ............................................................................................................................ 5

4.4.2 Méthode d’essai pour l’étape 2 ............................................................................................................................ 7

4.5 Liaison guidon-potence de guidon — Essai de sécurité en torsion .......................................................... 7

4.6 Liaison potence de guidon-tube pivot — Essai de sécurité en torsion .................................................. 8

4.7 Liaison prolongateur de guidon-guidon — Essai de sécurité en torsion ............................................. 9

4.8 Liaison extensions aérodynamiques-guidon — Essai de sécurité en torsion .................................. 9

4.9 Ensemble guidon-potence de guidon — Essai de fatigue ...............................................................................10

4.9.1 Méthode d’essai pour les bicyclettes de ville et tout chemin (trekking),

jeunes adultes et tout terrain .............................................................................................................................10

4.9.2 Méthode d’essai pour les bicyclettes de course .................................................................................12

© ISO 2014 – Tous droits réservés iii
---------------------- Page: 3 ----------------------
ISO 4210-5:2014(F)
Avant-propos

L’ISO (Organisation internationale de normalisation) est une fédération mondiale d’organismes

nationaux de normalisation (comités membres de l’ISO). L’élaboration des Normes internationales est

en général confiée aux comités techniques de l’ISO. Chaque comité membre intéressé par une étude

a le droit de faire partie du comité technique créé à cet effet. Les organisations internationales,

gouvernementales et non gouvernementales, en liaison avec l’ISO participent également aux travaux.

L’ISO collabore étroitement avec la Commission électrotechnique internationale (IEC) en ce qui

concerne la normalisation électrotechnique.

Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont

décrites dans les Directives ISO/IEC, Partie 1. Il convient, en particulier de prendre note des différents

critères d’approbation requis pour les différents types de documents ISO. Le présent document a été

rédigé conformément aux règles de rédaction données dans les Directives ISO/IEC, Partie 2 (voir www.

iso.org/directives).

L’attention est appelée sur le fait que certains des éléments du présent document peuvent faire l’objet de

droits de propriété intellectuelle ou de droits analogues. L’ISO ne saurait être tenue pour responsable

de ne pas avoir identifié de tels droits de propriété et averti de leur existence. Les détails concernant

les références aux droits de propriété intellectuelle ou autres droits analogues identifiés lors de

l’élaboration du document sont indiqués dans l’Introduction et/ou dans la liste des déclarations de

brevets reçues par l’ISO (voir www.iso.org/brevets).

Les appellations commerciales éventuellement mentionnées dans le présent document sont données

pour information, par souci de commodité, à l’intention des utilisateurs et ne sauraient constituer

un engagement.

Pour une explication de la signification des termes et expressions spécifiques de l’ISO liés à

l’évaluation de la conformité, ou pour toute information au sujet de l’adhésion de l’ISO aux principes

de l’OMC concernant les obstacles techniques au commerce (OTC), voir le lien suivant: Avant-propos —

Informations supplémentaires.

L’ISO 4210-5 a été élaborée par le comité technique ISO/TC 149, Cycles, sous-comité SC 1, Cycles et leurs

principaux sous-ensembles.

Cette première édition de l’ISO 4210-5 avec les ISO 4210-1, ISO 4210-2, ISO 4210-3, ISO 4210-4,

ISO 4210-6, ISO 4210-7, ISO 4210-8 et ISO 4210-9 annule et remplace l’ISO 4210:1996, qui a fait l’objet

d’une révision technique

L’ISO 4210 comprend les parties suivantes, présentées sous le titre général Cycles — Exigences de

sécurité pour les bicyclettes:
— Partie 1: Termes et définitions

— Partie 2: Exigences pour bicyclettes de ville et tout chemin (trekking), jeunes adultes, tout terrain et de

course
— Partie 3: Méthodes d’essai communes
— Partie 4: Méthodes d’essai de freinage
— Partie 5: Méthodes d’essai de la direction
— Partie 6: Méthodes d’essai du cadre et de la fourche
— Partie 7: Méthodes d’essai des roues et des jantes
— Partie 8: Méthodes d’essai des pédales et du système de transmission
— Partie 9: Méthodes d’essai des selles et des tiges de selle
iv © ISO 2014 – Tous droits réservés
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ISO 4210-5:2014(F)
Introduction

La présente Norme internationale a été élaborée pour répondre à une demande présente dans le

monde entier, et son objectif est de garantir que les bicyclettes fabriquées en conformité avec celle-ci

seront aussi sûres que possible. Les essais ont été conçus pour assurer la résistance et la durabilité des

différents composants et de la bicyclette dans son ensemble, en exigeant une qualité élevée à tous les

niveaux et en prenant en compte les aspects de sécurité dès la phase de conception.

Le domaine d’application a été restreint aux questions de sécurité et a spécifiquement évité la

normalisation des composants.

Si la bicyclette doit être utilisée sur la voie publique, les réglementations nationales s’appliquent.

© ISO 2014 – Tous droits réservés v
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NORME INTERNATIONALE ISO 4210-5:2014(F)
Cycles — Exigences de sécurité des bicyclettes —
Partie 5:
Méthodes d’essai de guidage
1 Domaine d’application

La présente partie de l’ISO 4210 spécifie les méthodes d’essai de la direction pour l’ISO 4210-2.

2 Références normatives

Les documents ci-après, dans leur intégralité ou non, sont des références normatives indispensables à

l’application du présent document. Pour les références datées, seule l’édition citée s’applique. Pour les

références non datées, la dernière édition du document de référence s’applique (y compris les éventuels

amendements).

ISO 4210-1, Cycles — Exigences de sécurité des bicyclettes — Partie 1: Termes et définitions

ISO 4210-2:2014, Cycles — Exigences de sécurité des bicyclettes — Partie 2: Exigences pour bicyclettes de

ville et de randonnée, de jeune adulte, de montagne et de course

ISO 4210-3:2014, Cycles — Exigences de sécurité pour les bicyclettes — Partie 3: Méthodes d’essai communes

3 Termes et définitions

Pour les besoins du présent document, les termes et définitions donnés dans l’ISO 4210-1 s’appliquent.

4 Méthodes d’essai
4.1 Poignées et bouchons de guidon
4.1.1 Essai de gel-dégel

Plonger le guidon muni de ses poignées ou de ses bouchons de guidon dans de l’eau à température

ambiante pendant 1 h, puis placer le guidon dans un congélateur jusqu’à ce que le guidon soit à une

température inférieure à – 5 °C. Sortir le guidon du congélateur, attendre que la température du guidon

soit de – 5 °C, puis appliquer une force de 70 N à la poignée ou au bouchon dans le sens de désassemblage,

comme illustré à la Figure 1. Maintenir la force jusqu’à ce que la température du guidon soit de + 5 °C. Il

est permis de percer un trou dans le bouchon pour permettre l’installation du dispositif d’essai tant que

le trou n’affecte pas l’assise du bouchon dans le guidon et que le dispositif d’essai n’entre pas en contact

avec le guidon pendant l’essai.
© ISO 2014 – Tous droits réservés 1
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ISO 4210-5:2014(F)
Légende
1 poignée du guidon
2 guidon
3 accessoire d’extraction
4 bague d’accrochage
5 Jeu
NOTE La bague d’accrochage peut être divisée.
Figure 1 — Exemple d’accessoire d’extraction d’une poignée de guidon
4.1.2 Essai à l’eau chaude

Plonger le guidon muni de ses poignées dans de l’eau chaude à + 60 °C ± 2 °C pendant 1 h. Retirer le

guidon de l’eau chaude, laisser sa température se stabiliser à température ambiante pendant 30 min,

puis appliquer une force de 100 N à la poignée dans le sens de désassemblage, comme illustré à la

Figure 1. Maintenir cette force pendant 1 min.
4.2 Potence de guidon — Essai de flexion latérale

Pour les potences de guidon qui ont un arbre creux destiné à être inséré dans un tube pivot, serrer

rigidement l’arbre creux dans un dispositif de fixation à la profondeur minimale d’insertion spécifiée

dans l’ISO 4210-2:2014, 4.7.3, ou, pour les extensions de potence de guidon qui se fixent directement

sur un tube pivot rallongé, fixer l’extension sur le tube pivot selon les instructions du fabricant et serrer

rigidement ce tube pivot dans un dispositif de fixation placé à une hauteur appropriée. Fixer une barre

d’essai sur la potence de guidon et appliquer une force F à une distance d de l’axe de la potence de

guidon comme indiqué dans le Tableau 1 et illustré à la Figure 2. Maintenir cette force pendant 1 min.

2 © ISO 2014 – Tous droits réservés
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ISO 4210-5:2014(F)
Tableau 1 — Forces et distances sur les guidons
Bicyclettes de
Type de bicy- ville et tout Bicyclettes Bicyclettes Bicyclettes de
clette chemin (trek- jeunes adultes tout terrain course
king)
Force, F
600 600 1 000 1 000
Distance, d
300 300 300 230
a) Ensemble potence de guidon et arbre creux b) Extension de potence de guidon
Légende
1 profondeur minimale d’insertion
2 dispositif de serrage
3 barre d’acier pleine
Figure 2 — Potence de guidon — Essai de flexion latérale
4.3 Ensemble guidon et potence — Essai de flexion latérale

Assembler le guidon et la potence de guidon selon les instructions du fabricant et, sauf dans le cas où

le guidon et la potence de guidon sont reliés par une liaison permanente (par exemple, soudage ou

brasage), aligner les poignées du guidon dans un plan perpendiculaire à l’axe vertical de direction [voir

Figure 3 a) ou Figure 4 a)]. Pour les potences de guidon qui ont un arbre creux destiné à être inséré dans

un tube pivot, serrer rigidement l’arbre creux dans un dispositif de fixation à la profondeur minimale

d’insertion, ou, pour les extensions de potence de guidon qui se fixent directement sur un tube pivot

rallongé, fixer l’extension sur le tube pivot selon les instructions du fabricant et serrer rigidement ce

tube pivot dans un dispositif de fixation placé à une hauteur appropriée. Appliquer une force F (voir

Tableau 2) à une distance de 50 mm de l’extrémité libre du guidon et parallèlement à l’axe du tube pivot

comme illustré à la Figure 3 ou 4. Maintenir cette force pendant 1 min.
Tableau 2 — Forces exercées sur les guidons
Forces en newtons
Bicyclettes de
Type de bicy- ville et tout Bicyclettes Bicyclettes Bicyclettes de
clette chemin (trek- jeunes adultes tout terrain course
king)
Force, F 600 600 1 000 1 000
© ISO 2014 – Tous droits réservés 3
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ISO 4210-5:2014(F)
Dimensions en millimètres
a) Orientation des guidons réglables
2 2
b) Ensemble potence de guidon et arbre creux c) Extension de pote
...

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