SIST EN ISO 4210-2:2015

SLOVENSKI STANDARD
kSIST FprEN ISO 4210-2:2015
01-julij-2015
Kolesa - Varnostne zahteve za kolesa - 2. del: Zahteve za mestna in treking kolesa,
kolesa za mlade, gorska in tekmovalna kolesa (ISO/FDIS 4210-2:2015)
Cycles - Safety requirements for bicycles - Part 2: Requirements for city and trekking,
young adult, mountain and racing bicycles (ISO/FDIS 4210-2:2015)
Fahrräder - Sicherheitstechnische Anforderungen an Fahrräder - Teil 2: Anforderungen
für City- und Trekkingfahrräder, Jugendfahrräder, Geländefahrräder (Mountainbikes) und
Rennräder (ISO/FDIS 4210-2:2015)
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/FDIS 4210-
2:2015)
Ta slovenski standard je istoveten z: FprEN ISO 4210-2 rev
ICS:
43.150 Kolesa Cycles
kSIST FprEN ISO 4210-2:2015 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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kSIST FprEN ISO 4210-2:2015

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kSIST FprEN ISO 4210-2:2015
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 4210-2
ISO/TC 149/SC 1
Cycles — Safety requirements for
Secretariat: JISC
bicycles —
Voting begins
on: 201 5-05-07
Part 2:
Voting terminates
Requirements for city and trekking,
on: 201 5-07-07
young adult, mountain and racing
bicycles
Cycles — Exigences de sécurité des bicyclettes —
Partie 2: Exigences pour bicyclettes de ville et de randonnée, de jeune
adulte, de montagne et de course
Please see the administrative notes on page iii
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.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 4210-2:2015(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
©
NATIONAL REGULATIONS. ISO 2015

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kSIST FprEN ISO 4210-2:2015
ISO/FDIS 4210-2:2015(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2015
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
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Tel. + 41 22 749 01 11
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E-mail copyright@iso.org
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Published in Switzerland
ii © ISO 2015 – All rights reserved

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kSIST FprEN ISO 4210-2:2015
ISO/FDIS 4210-2:2015(E)

ISO/CEN PARALLEL PROCESSING
This final draft has been developed within the International Organization for Standardization (ISO), and pro-
cessed under the ISO-lead mode of collaboration as defined in the Vienna Agreement. The final draft was
established on the basis of comments received during a parallel enquiry on the draft.
This final draft is hereby submitted to the ISO member bodies and to the CEN member bodies for a parallel
two-month approval vote in ISO and formal vote in CEN.
Positive votes shall not be accompanied by comments.
Negative votes shall be accompanied by the relevant technical reasons.
© ISO 2015 – All rights reserved iii

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kSIST FprEN ISO 4210-2:2015
ISO/FDIS 4210-2:2015(E)

Contents Page
Foreword .vii
Introduction .viii
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 2
4 Requirements . 2
4.1 Toxicity . 2
4.2 Sharp edges . 2
4.3 Security and strength of safety-related fasteners . 2
4.3.1 Security of screws . 2
4.3.2 Minimum failure torque . 3
4.3.3 Folding bicycle mechanism . 3
4.4 Crack detection methods . 3
4.5 Protrusions . 3
4.6 Brakes . 3
4.6.1 Braking systems. 3
4.6.2 Hand-operated brakes . 4
4.6.3 Attachment of brake assembly and cable requirements . 5
4.6.4 Brake-block and brake-pad assemblies — Security test . 5
4.6.5 Brake adjustment . 6
4.6.6 Hand-operated braking-system — Strength test . 6
4.6.7 Back-pedal braking system — Strength test . 6
4.6.8 Braking performance . 6
4.6.9 Brakes — Heat-resistance test . 9
4.7 Steering . 9
4.7.1 Handlebar — Dimensions . 9
4.7.2 Handlebar grips and plugs .10
4.7.3 Handlebar stem — Insertion-depth mark or positive stop .10
4.7.4 Handlebar stem to fork steerer — Clamping requirements . .10
4.7.5 Steering stability .11
4.7.6 Steering assembly — Static strength and security tests. .11
4.7.7 Handlebar and stem assembly — Fatigue test .13
4.8 Frames .13
4.8.1 Suspension-frames — Special requirements .13
4.8.2 Frame — Impact test (falling mass) .13
4.8.3 Frame and front fork assembly — Impact test (falling frame) .14
4.8.4 Frame — Fatigue test with pedalling forces .14
4.8.5 Frame — Fatigue test with horizontal forces .14
4.8.6 Frame — Fatigue test with a vertical force .14
4.9 Front fork .14
4.9.1 General.14
4.9.2 Means of location of the axle and wheel retention .14
4.9.3 Suspension forks — Special requirements .15
4.9.4 Front fork — Static bending test .15
4.9.5 Front fork — Rearward impact test .15
4.9.6 Front fork — Bending fatigue test plus rearward impact test.15
4.9.7 Forks intended for use with hub- or disc-brakes .16
4.9.8 Tensile test for a non-welded fork .16
4.10 Wheels and wheel/tyre assembly .16
4.10.1 Wheels/tyre assembly — Concentricity tolerance and lateral tolerance .16
4.10.2 Wheel/tyre assembly — Clearance .16
4.10.3 Wheel/tyre assembly — Static strength test.17
iv © ISO 2015 – All rights reserved

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kSIST FprEN ISO 4210-2:2015
ISO/FDIS 4210-2:2015(E)

4.10.4 Wheels — Wheel retention .17
4.10.5 Wheels — Quick-release devices — Operating features .18
4.11 Rims, tyres, and tubes .18
4.11.1 General.18
4.11.2 Tyre inflation pressure .18
4.11.3 Tyre and rim compatibility .18
4.11.4 Tubular tyres and rims .18
4.11.5 Rim-wear .19
4.11.6 Greenhouse effect test for composite wheels .19
4.12 Front mudguard .19
4.13 Pedals and pedal/crank drive system .19
4.13.1 Pedal tread .19
4.13.2 Pedal clearance .20
4.13.3 Pedal — Static strength test .21
4.13.4 Pedal — Impact test .21
4.13.5 Pedal — Dynamic durability test .21
4.13.6 Drive system — Static strength test .21
4.13.7 Crank assembly — Fatigue test .22
4.14 Drive-chain and drive belt .22
4.14.1 Drive-chain .22
4.14.2 Drive belt .22
4.15 Chain-wheel and belt-drive protective device .22
4.15.1 Requirements .22
4.15.2 Chain-wheel disc and drive pulley disc diameter .23
4.15.3 Chain and drive belt protective device .24
4.15.4 Combined front gear-change guide .25
4.16 Saddles and seat-posts .26
4.16.1 Limiting dimensions .26
4.16.2 Seat-post — Insertion-depth mark or positive stop .26
4.16.3 Saddle/seat-post — Security test .26
4.16.4 Saddle — Static strength test .27
4.16.5 Saddle and seat-post clamp — Fatigue test .27
4.16.6 Seat-post — Fatigue test .27
4.17 Spoke protector .27
4.18 Luggage carriers .28
4.19 Road test of a fully assembled bicycle .28
4.20 Lighting systems and reflectors .28
4.20.1 General.28
4.20.2 Wiring harness .28
4.20.3 Lighting systems .28
4.20.4 Reflectors . .28
4.21 Warning device .29
5 Manufacturer’s instructions .29
6 Marking .31
6.1 Requirement .31
6.2 Durability test .31
Annex A (informative) Steering geometry .32
Bibliography .33
© ISO 2015 – All rights reserved v

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kSIST FprEN ISO 4210-2:2015
ISO/FDIS 4210-2:2015(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 second edition cancels and replaces the first edition (ISO 4210-2:2014), 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 rim test methods
— Part 8: Pedal and drive system test methods
— Part 9: Saddles and seat-post test methods
vi © ISO 2015 – All rights reserved

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kSIST FprEN ISO 4210-2:2015
ISO/FDIS 4210-2:2015(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.
For the purposes of improving repeatability and reproducibility and considering the applicability to all
types of bicycle and the size and influence of the operator, the machine test method reflects today’s state
of the art and is preferred to the track test method.
Unless there is evidence of improvement of the test track method in the future, this method will be
made informative for the next revision. Users of this International Standard are invited to provide their
feedback to ISO/TC 149/SC 1.
© ISO 2015 – All rights reserved vii

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kSIST FprEN ISO 4210-2:2015

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kSIST FprEN ISO 4210-2:2015
FINAL DRAFT INTERNATIONAL STANDARD ISO/FDIS 4210-2:2015(E)
Cycles — Safety requirements for bicycles —
Part 2:
Requirements for city and trekking, young adult, mountain
and racing bicycles
1 Scope
This part of ISO 4210 specifies safety and performance requirements for the design, assembly, and
testing of bicycles and sub-assemblies having saddle height as given in Table 1, and lays down guidelines
for manufacturer’s instructions on the use and care of such bicycles.
This part of ISO 4210 applies to young adult bicycles with maximum saddle height of 635 mm or more
and less than 750 mm, city and trekking bicycles, mountain bicycles, and racing bicycles that have a
maximum saddle height of 635 mm or more including folding bicycles (see Table 1 and Figure 1).
This part of ISO 4210 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 ISO 8124-1, and with a maximum
saddle height of more than 435 mm and less than 635 mm, see ISO 8098.
Table 1 — Maximum saddle height
Dimensions in millimetres
City and trekking Racing
Bicycle type Young adult bicycles Mountain bicycles
bicycles bicycles
Maximum saddle 635 or more and less
635 or more 635 or more 635 or more
height than 750
Key
H maximum saddle height
1 minimum insertion-depth mark
2 ground plane
Figure 1 — Maximum saddle height
© ISO 2015 – All rights reserved 1

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kSIST FprEN ISO 4210-2:2015
ISO/FDIS 4210-2:2015(E)

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 4210-3:2014, Cycles — Safety requirements for bicycles — Part 3: Common test methods
ISO 4210-4:2014, Cycles — Safety requirements for bicycles — Part 4: Braking test methods
ISO 4210-5:2014, Cycles — Safety requirements for bicycles — Part 5: Steering test methods
ISO 4210-6:2014, Cycles — Safety requirements for bicycles — Part 6: Frame and fork test methods
ISO 4210-7:2014, Cycles — Safety requirements for bicycles — Part 7: Wheels and rims test methods
ISO 4210-8:2014, Cycles — Safety requirements for bicycles — Part 8: Pedal and drive system test methods
ISO 4210-9:2014, Cycles — Safety requirements for bicycles — Part 9: Saddles and seat-post test methods
ISO 5775-1, Bicycle tyres and rims — Part 1: Tyre designations and dimensions
ISO 5775-2, Bicycle tyres and rims — Part 2: Rims
ISO 6742-1, Cycles — Lighting and retro-reflective devices — Part 1: Lighting and light signalling devices
ISO 6742-2, Cycles — Lighting and retro-reflective devices — Part 2: Retro-reflective devices
ISO 9633, Cycle chains — Characteristics and test methods
ISO 11243, Cycles — Luggage carriers for bicycles — Concepts, classification and testing
3 Terms a nd definiti ons
For the purposes of this document, the terms and definitions given in ISO 4210-1 apply.
4 Requirements
4.1 Toxicity
Any items which come into intimate contact with the rider (i.e. causing any hazard due to sucking or
licking) shall comply with any national regulations specific to children’s products.
4.2 Sharp edges
Exposed edges that could come into contact with the rider’s hands, legs, etc., during normal riding or
normal handling and normal maintenance shall not be sharp, e.g. deburred, broken, rolled, or processed
with comparable techniques.
NOTE Refer to ISO 13715:2000.
4.3 Security and strength of safety-related fasteners
4.3.1 Security of screws
Any screws used in the assembly of suspension systems, brackets attached to electric generators, brake
mechanisms and mudguards to the frame or fork, and the saddle to the seat-post shall be provided with
2 © ISO 2015 – All rights reserved

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kSIST FprEN ISO 4210-2:2015
ISO/FDIS 4210-2:2015(E)

suitable locking devices, e.g. lock-washers, lock-nuts, thread locking compound, or stiff nuts. Fasteners
used to assemble hub and disc brakes should have h
...