Cycles — Safety requirements for bicycles — Part 1: Vocabulary

This document specifies terms and definitions related to safety and performance requirements for the design, assembly, and testing of bicycles and sub-assemblies having maximum saddle height 635 mm or more. This document does not apply to specialized types of bicycle such as delivery bicycles, recumbent bicycles, tandems, BMX bicycles, and bicycles designed and equipped for use in severe applications such as sanctioned competition events, stunting, or aerobatic manoeuvres. NOTE For bicycles with a maximum saddle height of 435 mm or less, see national regulations for ride-on toys, and with a maximum saddle height of more than 435 mm and less than 635 mm, see ISO 8098.

Cycles — Exigences de sécurité pour les bicyclettes — Partie 1: Vocabulaire

General Information

Status
Published
Publication Date
10-Jan-2023
Current Stage
6060 - International Standard published
Due Date
12-Sep-2022
Completion Date
11-Jan-2023
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INTERNATIONAL ISO
STANDARD 4210-1
Second edition
2023-01
Cycles — Safety requirements for
bicycles —
Part 1:
Vocabulary
Cycles — Exigences de sécurité pour les bicyclettes —
Partie 1: Vocabulaire
Reference number
ISO 4210-1:2023(E)
© ISO 2023
---------------------- Page: 1 ----------------------
ISO 4210-1:2023(E)
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

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© ISO 2023 – All rights reserved
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ISO 4210-1:2023(E)
Contents Page

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

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

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

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

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

3.1 Bicycle type ............................................................................................................................................................................................... 1

3.2 General terms .......................................................................................................................................................................................... 2

3.3 Driving environment ........................................................................................................................................... .............................. 3

3.4 Brake ............................................................................................................................................................................................................... 4

3.5 Head assembly ........................................................................................................................................................................................ 4

3.6 Frame and fork ....................................................................................................................................................................................... 5

3.7 Wheel and rim ......................................................................................................................................................................................... 5

3.8 Pedal and drive system ................................................................................................................................................................... 6

3.9 Saddle and seat-post .......................................................................................................................................................................... 7

Bibliography ................................................................................................................................................................................................................................ 8

Index .................................................................................................................................................................................................................................................... 9

iii
© ISO 2023 – All rights reserved
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ISO 4210-1:2023(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.

This second edition cancels and replaces the first edition (ISO 4210-1:2014), which has been technically

revised, 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).
The main changes are as follows:
— the configuration of Clause 3 was systematically changed;
— some corrections according to ISO/IEC Directives Part 2 were done;
— the definitions of "racing bicycle” and "crank assembly" were modified;

— the following terms and definitions: “handlebar grips portion”, “rigid, non-welded fork”, “sag”,

“wheel and tyre assembly”, “crank assembly”, “dropper seat-post”, “seat mast cap” and “suspension

dropper seat-post” were added.
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.
© ISO 2023 – All rights reserved
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ISO 4210-1:2023(E)
Introduction

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

to ensure that bicycles manufactured in conformity with this document 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 should be used on public roads, national regulations apply.
© ISO 2023 – All rights reserved
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INTERNATIONAL STANDARD ISO 4210-1:2023(E)
Cycles — Safety requirements for bicycles —
Part 1:
Vocabulary
1 Scope

This document specifies terms and definitions related to safety and performance requirements for the

design, assembly, and testing of bicycles and sub-assemblies having maximum saddle height 635 mm or

more.

This document does not apply to specialized types of bicycle such as delivery bicycles, recumbent

bicycles, tandems, BMX bicycles, and bicycles designed and equipped for use in severe applications such

as sanctioned competition events, stunting, or aerobatic manoeuvres.

NOTE For bicycles with a maximum saddle height of 435 mm or less, see national regulations for ride-on

[1]

toys, and with a maximum saddle height of more than 435 mm and less than 635 mm, see ISO 8098 .

2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

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

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1 Bicycle type
3.1.1
bicycle

two-wheeled vehicle that is propelled solely or mainly by the muscular energy of the person on that

vehicle, in particular by means of pedals
3.1.2
city and trekking bicycle

bicycle (3.1.1) designed for use on public roads (3.3.3) primarily for means of transportation or leisure

3.1.3
delivery bicycle
bicycle (3.1.1) designed for the primary purpose of carrying goods
3.1.4
folding bicycle

bicycle (3.1.1) designed to fold into a compact form, facilitating transport and storage

© ISO 2023 – All rights reserved
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ISO 4210-1:2023(E)
3.1.5
mountain bicycle

bicycle (3.1.1) designed for use off-road on rough terrain, on public roads (3.3.3), and on public pathways

(3.3.2), equipped with a suitably strengthened frame and other components, and, typically, with wide-

section tyres with coarse tread patterns and a wide range of transmission gears
3.1.6
racing bicycle

bicycle (3.1.1) intended for high-speed amateur use on public roads (3.3.3) and having a steering

assembly with multiple grip positions (allowing for an aerodynamic posture, such as drop bars or

aerodynamic bars), a multi-speed transmission system, and a maximum mass of 12 kg for the fully

assembled bicycle (3.2.5)
3.1.7
recumbent bicycle
bicycle (3.1.1) that places the rider in a laid-back reclining position
3.1.8
tandem
bicycle (3.1.1) with saddles for two or more riders, one behind the other
3.1.9
young adult bic
...

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