prEN ISO 8098

Cycles - Safety requirements for bicycles for young children (ISO/DIS 8098:2021)

Fahrräder - Sicherheitstechnische Anforderungen an Kinderfahrräder (ISO/DIS 8098:2021)

Diese Internationale Norm legt sicherheitstechnische Anforderungen und Leistungsanforderungen sowie Prüfverfahren hinsichtlich der konstruktiven Ausführung, Montage und Prüfung von vollständig zusammengebauten Kinderfahrrädern und deren Baugruppen fest. Gleichfalls wird eine Leitlinie für die Anleitungen zur Benutzung und Pflege der Fahrräder bereitgestellt.
Diese Internationale Norm gilt für Fahrräder, deren maximale Sattelhöhe mehr als 435 mm und weniger als 635 mm beträgt und die durch Kraftübertragung auf das Hinterrad angetrieben werden.
Diese Norm gilt nicht für spezielle Fahrräder, die für Trickfahrten bestimmt sind (z. B. BMX-Fahrräder).

Cycles - Exigences de sécurité relatives aux bicyclettes pour jeunes enfants (ISO/DIS 8098:2021)

Kolesa - Varnostne zahteve za kolesa za mlajše otroke (ISO/DIS 8098:2021)

General Information

• Status: Not Published
• ICS: 43.150 - Cycles
• ICS: 97.190 - Equipment for children
• Technical Committee: CEN/TC 333 - Cycles
• Current Stage: 4599 - Dispatch of FV draft to CMC - Finalization for Vote
• Due Date: 31-Aug-2022
• Completion Date: 31-Aug-2022
• Ref Project: oSIST prEN ISO 8098:2022 - Cycles - Safety requirements for bicycles for young children (ISO/DIS 8098:2021)

RELATIONS

• Revised: EN ISO 8098:2014 - Cycles - Safety requirements for bicycles for young children (ISO 8098:2014)
• Effective Date: 27-Mar-2019

Standards Content (sample)

SLOVENSKI STANDARD
oSIST prEN ISO 8098:2022
01-januar-2022
Kolesa - Varnostne zahteve za kolesa za mlajše otroke (ISO/DIS 8098:2021)
Cycles - Safety requirements for bicycles for young children (ISO/DIS 8098:2021)
Fahrräder - Sicherheitstechnische Anforderungen an Kinderfahrräder (ISO/DIS
8098:2021)

Cycles - Exigences de sécurité relatives aux bicyclettes pour jeunes enfants (ISO/DIS

8098:2021)
Ta slovenski standard je istoveten z: prEN ISO 8098
ICS:
43.150 Kolesa Cycles
97.190 Otroška oprema Equipment for children
oSIST prEN ISO 8098:2022 en,fr,de

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

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oSIST prEN ISO 8098:2022
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oSIST prEN ISO 8098:2022
DRAFT INTERNATIONAL STANDARD
ISO/DIS 8098
ISO/TC 149/SC 1 Secretariat: JISC
Voting begins on: Voting terminates on:
2021-11-08 2022-01-31
Cycles — Safety requirements for bicycles for young
children
Cycles — Exigences de sécurité relatives aux bicyclettes pour jeunes enfants
ICS: 43.150; 97.190
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 8098:2021(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 8098:2022
ISO/DIS 8098:2021(E)
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
CP 401 • Ch. de Blandonnet 8
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Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved
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oSIST prEN ISO 8098:2022
ISO/DIS 8098:2021(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

Introduction ................................................................................................................................................................................................................................vi

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

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

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

4 Requirements and test methods .......................................................................................................................................................... 3

4.1 Brake tests and strength tests — Special requirements ..................................................................................... 3

4.1.1 Definition of brake tests ............................................................................................................................................ 3

4.1.2 Definition of strength tests ..................................................................................................................................... 3

4.1.3 Numbers and condition of specimens for the strength tests ..................................................... 3

4.1.4 Tolerances .............................................................................................................................................................................. 3

4.1.5 Fatigue test ............................................................................................................................................................................ 4

4.1.6 Plastic material test ambient temperature ............................................................................................... 4

4.1.7 Impact test ............................................................................................................................................................................. 4

4.2 Toxicity ........................................................................................................................................................................................................... 4

4.3 Sharp edges ................................................................................................................................................................................................ 4

4.4 Security and strength of safety-related fasteners ..................................................................................................... 4

4.4.1 Security of screws ........................................................................................................................................................... 4

4.4.2 Minimum failure torque ............................................................................................................................................ 4

4.4.3 Quick-release devices .................................................................................................................................................. 5

4.4.4 Foot location devices .................................................................................................................................................... 5

4.4.5 Folding bicycle mechanism ..................................................................................................................................... 5

4.5 Crack detection methods ................................................................................................................................................................ 5

4.6 Protrusions ................................................................................................................................................................................................. 5

4.7 Brakes ............................................................................................................................................................................................................. 5

4.7.1 Braking-systems ............................................................................................................................................................... 5

4.7.2 Hand-operated brakes ................................................................................................................................................ 5

4.7.3 Attachment of brake assembly and cable requirements ............................................................... 9

4.7.4 Brake-block and brake-pad assemblies — Security test ............................................................... 9

4.7.5 Brake adjustment ............................................................................................................................................................ 9

4.7.6 Back-pedal brake ............................................................................................................................................................. 9

4.7.7 Braking-system — Strength tests ...................................................................................................................10

4.7.8 Braking performance ................................................................................................................................................11

4.8 Steering .......................................................................................................................................................................................................13

4.8.1 Handlebar — Dimensions and end fittings ............................................................................................13

4.8.2 Handlebar grips .............................................................................................................................................................13

4.8.3 Handlebar-stem — Insertion depth mark or positive stop ......................................................14

4.8.4 Steering stability ...........................................................................................................................................................14

4.8.5 Steering assembly — Static strength and security tests .................. ...........................................15

4.8.6 Handlebar and stem assembly — Fatigue test ....................................................................................18

4.9 Frames .........................................................................................................................................................................................................20

4.9.1 Frame and front fork assembly — Impact test (falling mass) ...............................................20

4.9.2 Frame and front fork assembly — impact test (falling frame) ..............................................22

4.10 Front fork ..................................................................................................................................................................................................23

4.10.1 General...................................................................................................................................................................................23

4.10.2 Front fork — Bending fatigue test .................................................................................................................23

4.11 Wheels .........................................................................................................................................................................................................23

4.11.1 Rotational accuracy ....................................................................................................................................................23

4.11.2 Wheel/tyre assembly — Clearance ..............................................................................................................26

4.11.3 Wheel/tyre assembly — Static strength test........................................................................................26

4.11.4 Wheel retention .............................................................................................................................................................26

4.12 Rims, tyres and tubes .....................................................................................................................................................................27

4.12.1 Tyre inflation pressure ............................................................................................................................................27

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4.12.2 Tyre and rim compatibility ..................................................................................................................................27

4.13 Pedals and pedal/crank drive system ..............................................................................................................................28

4.13.1 Pedal tread .........................................................................................................................................................................28

4.13.2 Pedal clearance ...............................................................................................................................................................28

4.13.3 Pedal — Impact test ...................................................................................................................................................29

4.13.4 Pedal/pedal-spindle — Dynamic durability test ..............................................................................30

4.13.5 Drive system static strength test .....................................................................................................................31

4.13.6 Crank assembly — Fatigue tests......................................................................................................................32

4.14 Saddles and seat-posts ..................................................................................................................................................................33

4.14.1 Limiting dimensions ..................................................................................................................................................33

4.14.2 Seat-post — Insertion-depth mark or positive stop ......................................................................33

4.14.3 Saddle and seat-post security test .................................................................................................................34

4.14.4 Saddle — Static strength test .............................................................................................................................35

4.14.5 Saddle and seat-post assembly fatigue test ...........................................................................................35

4.15 Chain-guard ............................................................................................................................................................................................36

4.16 Stabilizers .................................................................................................................................................................................................37

4.16.1 Mounting and dismounting .................................................................................................................................37

4.16.2 Dimensions ........................................................................................................................................................................37

4.16.3 Vertical load test ............................................................................................................................................................38

4.16.4 Longitudinal load test ...............................................................................................................................................39

4.17 Luggage carriers .................................................................................................................................................................................39

4.18 Lighting systems and reflectors ............................................................................................................................................40

4.18.1 Front and rear light ........................................................................................................................................... ..........40

4.18.2 Reflectors ...................................................................... .......................................................................................................40

4.18.3 Wiring harness ...............................................................................................................................................................40

4.19 Warning device ....................................................................................................................................................................................40

5 Instructions .............................................................................................................................................................................................................40

6 Marking .......................................................................................................................................................................................................................41

6.1 Requirement ..........................................................................................................................................................................................41

6.2 Durability test .......................................................................................................................................................................................42

6.2.1 Requirement .....................................................................................................................................................................42

6.2.2 Test method .......................................................................................................................................................................42

Annex A (informative) Steering geometry ...................................................................................................................................................43

Annex B (informative) Verification of free fall velocity ..................................................................................................................45

Bibliography .............................................................................................................................................................................................................................46

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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 fourth edition cancels and replaces the third edition (ISO 8098:2014), which has been technically

revised.
The main changes compared to the previous edition are as follows:
— xxx xxxxxxx xxx xxxx

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 2021 – All rights reserved v
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oSIST prEN ISO 8098:2022
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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 standardization of

components.
If the bicycle is to be used on public roads, national regulations apply.

For safety requirements for toy bicycles intended for very young children see national regulations and

standards.
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oSIST prEN ISO 8098:2022
DRAFT INTERNATIONAL STANDARD ISO/DIS 8098:2021(E)
Cycles — Safety requirements for bicycles for young
children
1 Scope

This International Standard specifies safety and performance requirements and test methods for the

design, assembly and testing of fully assembled bicycles and sub-assemblies for young children. It also

provides guidelines for instructions on the use and care of the bicycles.

This International Standard is applicable to bicycles with a maximum saddle height of more than

435 mm and less than 635 mm, propelled by a transmitted drive to the rear wheel.

It is not applicable to special bicycles intended for performing stunts (e.g. BMX bicycles).

2 Normative references

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

constitutes requirements 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 1101, Geometrical product specifications (GPS) — Geometrical tolerancing — Tolerances of form,

orientation, location and run-out
ISO 5775-1, Bicycle tyres and rims — Part 1: Tyre designations and dimensions
ISO 5775-2, Bicycle tyres and rims — Part 2: Rims

ISO 6742-2, Cycles — Lighting and retro-reflective devices — Part 2: Retro-reflective devices

ISO 8124-1, Safety of toys — Part 1: Safety aspects related to mechanical and physical properties

ISO 11243, Cycles — Luggage carriers for bicycles — Requirements and test methods

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

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
3.2
brake-lever
lever that operates a braking device
3.3
conventional brake-lever
brake-lever with a rotational axis perpendicular to the handlebar
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3.4
parallel brake-lever
brake-lever with rotational axis parallel to the handlebar
3.5
braking force

tangential rearward force between the tyre and the ground or the tyre and the drum or belt of the test

machine
3.6
crank assembly

assembly consisting of the drive side and the nondrive side crank arm the bottom-bracket spindle or

crank spindle, and all component of the drive system that are affixed to the crankset

3.7
cycle

any vehicle that has at least two wheels and is propelled solely or mainly by the muscular energy of the

person on that vehicle, in particular by means of pedals
3.8
exposed protrusion

protrusion which through its location and rigidity could present a hazard to the rider either through

heavy contact with it in normal use or should the rider fall onto it in an accident

3.9
fracture
unintentional separation into two or more parts
3.10
highest gear

gear ratio which gives the greatest distance travelled for one rotation of the cranks

3.11
lowest gear

gear ratio which gives the shortest distance travelled for one rotation of the cranks

3.12
maximum inflation pressure

maximum tyre pressure recommended by the tyre or rim manufacturer for a safe and efficient

performance, and if the maximum rim pressure was marked on both the tyre and rim, maximum tyre

pressure according to the lower marked maximum inflation pressure on the rim or tyre

3.13
maximum saddle height

vertical distance from the ground to the point where the top of the seat surface is intersected by

the seat-post axis, measured with the seat in a horizontal position and with the seat-post set to the

minimum insertion-depth mark
3.14
pedal tread surface
surface of a pedal that is presented to the underside of the foot
3.15
quick-release devices

lever actuated mechanism that connects, retains, or secures a wheel or any other component

3.16
stabilizers
removable auxiliary wheels fitted to enable the rider to balance
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3.17
toe-clip

device attached to the pedal to grip the toe end of the rider's shoe but permitting withdrawal of the

shoe
3.18
toe-strap
device to securely locate a rider's shoe on a pedal
3.19
visible crack
crack which results from a test where that crack is visible to the naked eye
4 Requirements and test methods
4.1 Brake tests and strength tests — Special requirements
4.1.1 Definition of brake tests

Brake tests to which accuracy requirements apply, as in 4.1.4, are those specified in 4.7.2.3 to 4.7.8.4

inclusive.
4.1.2 Definition of strength tests

Strength tests to which accuracy requirements apply, as in 4.1.4, are those involving static, impact or

fatigue loading as specified in 4.8 to 4.14 inclusive and 4.16.
4.1.3 Numbers and condition of specimens for the strength tests

In general, for static, impact and fatigue tests, each test shall be conducted on a new test sample, but

if only one sample is available, it is permissible to conduct all of the tests on the same sample with the

sequence of testing being fatigue, static and impact.

When more than one test is conducted on the same sample, the test sequence shall be clearly recorded

in the test report or record of testing.

NOTE It should be noted that if more than one test is conducted on the same sample, earlier test can influence

the results of subsequent tests. Also, if a sample fails when it has been subjected to more than one test, a direct

comparison with single testing is not possible.
In all strength tests, specimens shall be in the fully finished condition.

It is permitted to carry out tests with dummy assemblies such as a fork or handlebar when carrying out

frame or handlebar stem tests.
4.1.4 Tolerances

Unless stated otherwise, accuracy tolerances based on the nominal values shall be as follows:

— Forces and torques: 0/+5 %
— Masses and weights: ±1 %
— Dimensions: ±1 mm
— Angles: ±1°
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— Time duration: ±5 s
— Temperatures: ±2 °C
— Pressures: ±5 %
4.1.5 Fatigue test

The force for fatigue tests is to be applied and released progressively, not to exceed 10 Hz. The tightness

of fasteners according to manufacturer's recommended torque can be re-checked not later than 1 000

test cycles to allow for the initial settling of the component assembly. (This is considered applicable to

all components, where fasteners are present for clamping.) The test bench shall be qualified to meet

dynamic requirements of 4.1.4.

NOTE Examples of suitable methods are listed in Reference [7] in the Bibliography.

4.1.6 Plastic material test ambient temperature

All strength tests involving any plastic materials shall be pre-conditioned for two hours and tested at

an ambient temperature of 23 °C ± 5 °C.
4.1.7 Impact test

For all vertical impact test, the striker shall be guided in such a way that the efficiency will allow a

value of at least 95 % of the free velocity.
NOTE See Annex B.
4.2 Toxicity

Any items which come into intimate contact with the rider (i.e. causing any hazard due to sucking or

licking) shall comply with national regulations specific to children's products.
...