Cycles - Safety requirements for bicycles - Part 5: Steering test methods (ISO/FDIS 4210-5:2022)

Fahrräder - Sicherheitstechnische Anforderungen an Fahrräder - Teil 5: Prüfverfahren für die Lenkung (ISO/FDIS 4210-5:2022)

Der vorliegende Teil von ISO 4210 legt die Prüfverfahren für die Lenkung nach ISO 4210 2 fest.

Cycles - Exigences de sécurité pour les bicyclettes - Partie 5: Méthodes d'essai de la direction (ISO/FDIS 4210-5:2022)

Kolesa - Varnostne zahteve za kolesa - 5. del: Preskusne metode za krmila (ISO/DIS 4210-5:2021)

General Information

Status
Not Published
Technical Committee
Current Stage
4599 - Dispatch of FV draft to CMC - Finalization for Vote
Due Date
20-Apr-2021

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SLOVENSKI STANDARD
oSIST prEN ISO 4210-5:2022
01-januar-2022
Kolesa - Varnostne zahteve za kolesa - 5. del: Preskusne metode za krmila
(ISO/DIS 4210-5:2021)

Cycles - Safety requirements for bicycles - Part 5: Steering test methods (ISO/DIS 4210-

5:2021)

Fahrräder - Sicherheitstechnische Anforderungen an Fahrräder - Teil 5: Prüfverfahren

für die Lenkung (ISO/DIS 4210-5:2021)

Cycles - Exigences de sécurité des bicyclettes - Partie 5 : Méthodes d'essai de guidage

(ISO/DIS 4210-5:2021)
Ta slovenski standard je istoveten z: prEN ISO 4210-5
ICS:
43.150 Kolesa Cycles
oSIST prEN ISO 4210-5:2022 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 4210-5:2022
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oSIST prEN ISO 4210-5:2022
DRAFT INTERNATIONAL STANDARD
ISO/DIS 4210-5
ISO/TC 149/SC 1 Secretariat: JISC
Voting begins on: Voting terminates on:
2021-11-05 2022-01-28
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
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
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
ISO/CEN PARALLEL PROCESSING
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
Reference number
NATIONAL REGULATIONS.
ISO/DIS 4210-5:2021(E)
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. ISO 2021
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oSIST prEN ISO 4210-5:2022
ISO/DIS 4210-5:2021(E)
ISO/DIS 4210-5:2021(E)
Contents

This template allows you to work with default MS Word functions and styles. You can use these if you want

to maintain the Table of Contents automatically and apply auto-numbering.
To update the Table of Contents please select it and press "F9".

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 ........................................................... 8

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 except drop handlebar ........................................................................................... 10

4.9.2 Test method for drop handlebar ................................................................................................... 12

COPYRIGHT PROTECTED DOCUMENT
© ISO 2021

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
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Phone: +41 22 749 01 11
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Email: copyright@iso.org
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Published in Switzerland
© ISO 2021 – All rights reserved iii
ii © ISO 2021 – All rights reserved
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oSIST prEN ISO 4210-5:2022
ISO/DIS 4210-5:2021(E)
Contents

This template allows you to work with default MS Word functions and styles. You can use these if you want

to maintain the Table of Contents automatically and apply auto-numbering.
To update the Table of Contents please select it and press "F9".

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 ........................................................... 8

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 except drop handlebar ........................................................................................... 10

4.9.2 Test method for drop handlebar ................................................................................................... 12

© ISO 2021 – All rights reserved iii
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oSIST prEN ISO 4210-5:2022
ISO/DIS 4210-5:2021(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.

This second edition cancels and replaces the first edition (ISO 4210-5:2014), which has been technically

revised.
The main changes compared to the previous edition are as follows:
— xxx xxxxxxx xxx xxxx
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 2021 – All rights reserved
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oSIST prEN ISO 4210-5:2022
ISO/DIS 4210-5:2021(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 2021 – All rights reserved v
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oSIST prEN ISO 4210-5:2022
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oSIST prEN ISO 4210-5:2022
DRAFT INTERNATIONAL STANDARD ISO/DIS 4210-5:2021(E)
1 Cycles — Safety requirements for bicycles — Part 5: Steering test
2 methods
3 1 Scope
4 This part of ISO 4210 specifies the steering test methods for ISO 4210-2.
5 2 Normative references

6 The following documents are referred to in the text in such a way that some or all of their content

7 constitutes requirements of this document. For dated references, only the edition cited applies. For

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

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

10 ISO 4210-2, Cycles — Safety requirements for bicycles — Part 2: Requirements for city and trekking, young

11 adult, mountain and racing bicycles

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

13 3 Terms and definitions

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

15 ISO and IEC maintain terminological databases for use in standardization at the following addresses:

16 — ISO Online browsing platform: available at https://www.iso.org/obp
17 — IEC Electropedia: available at http://www.electropedia.org/
18 4 Test methods
19 4.1 Handlebar grips and plugs
20 4.1.1 Freezing test

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

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

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

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

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

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

27 handlebar and the fixture does not contact the handlebar during the test.

28 Temperature is measured on the handlebar 3 cm from the grip towards the centre of the handlebar.

© ISO 2021 – All rights reserved 1
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oSIST prEN ISO 4210-5:2022
ISO/DIS 4210-5:2021(E)
30 Key
1 handlebar grip
2 handlebar
3 drawing attachment
4 hooking ring
5 clearance
31 NOTE The hooking ring can be divided.
32 Figure 1 — Example of handlebar grip drawing attachment
33 4.1.2 Hot water test

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

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

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

37 1 min.
38 4.2 Handlebar stem — Lateral bending test

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

40 minimum insertion depth as specified in ISO 4210-2, 4.7.3, or for stem extensions which clamp directly

41 on to an extende
...

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