SIST EN ISO 11243:2016

Cycles - Luggage carriers for bicycles - Requirements and test methods (ISO 11243:2016)

This European Standard specifies safety and performance requirements for the design and testing of luggage carriers intended for permanent mounting above or adjacent to the wheels of cycles and lays down guide lines for instructions on the use and care of such luggage carriers. This European Standard does not apply to removable luggage (for example handlebar bags or baskets that are not permanently attached).

Fahrräder - Gepäckträger für Fahrräder - Anforderungen und Prüfverfahren (ISO 11243:2016)

Diese Internationale Norm legt Anforderungen für die Sicherheit und Leistung bei der konstruktiven Ausfüh¬rung und Prüfung von Fahrradgepäckträgern fest, die für den Anbau (mit und ohne Werkzeug) oberhalb und seitlich der Fahrzeugräder vorgesehen sind und formuliert Leitlinien für die Nutzung und Pflege solcher Fahrradgepäckträger.
Diese Internationale Norm gilt nicht für abnehmbare Gepäcktaschen (z. B. Taschen oder Körbe an Lenkern, die nicht dauerhaft befestigt sind).
Spielzeugträger, die für den Anbau an Fahrräder von Kleinkindern vorgesehen sind und durch den Anwendungs¬bereich von ISO 8098 erfasst sind, werden in dieser Internationalen Norm nicht behandelt.

Cycles - Porte-bagages pour bicyclettes - Exigences et méthodes d'essai (ISO 11243:2016)

ISO 11243 :2016 spécifie les exigences de sécurité et de performance pour la conception et l'essai de porte-bagages destinés à être montés (avec ou sans outil) au-dessus et à côté des roues de cycles et établit les lignes directrices pour les instructions sur l'utilisation et l'entretien de ces porte-bagages.
Elle ne concerne pas les bagages amovibles (par exemple des sacs de guidon ou des paniers qui ne sont pas fixés en permanence).
Les porte-bagages jouet destinés à être montés sur les bicyclettes pour jeunes enfants entrant dans le domaine d'application de la norme ISO 8098 ne sont pas couverts par l'ISO 11243 :2016.

Kolesa - Prtljažniki za kolesa - Zahteve in preskusne metode (ISO 11243:2016)

Ta evropski standard določa zahteve glede varnosti in učinkovitosti za zasnovo in preskušanje prtljažnikov, namenjenih za trajno namestitev nad ali ob kolesa koles, ter opredeljuje smernice za navodila o uporabi in vzdrževanju takšnih prtljažnikov. Ta evropski standard se ne uporablja za odstranljivo prtljago (npr. vreče ali košare na krmilu, ki niso trajno nameščene).

General Information

• Status: Published
• Public Enquiry End Date: 30-Dec-2014
• Publication Date: 07-Sep-2016
• ICS: 43.150 - Cycles
• Technical Committee: SPO - Sports
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 28-Jul-2016
• Due Date: 02-Oct-2016
• Completion Date: 08-Sep-2016
• Directive: 2001/95/EC - Directive 2001/95/EC of the European Parliament and of the Council of 3 December 2001 on general product safety
• Directive: 2001/992 - Ambient air quality assessment and management for Cd, As, Ni, Hg, ... (4th daughter Directive of 94/62/EC Directive)
• Mandate: M/508 - Standardisation mandate issued to the European standardisation organisations (ESOs) to develop European standards for bicycles, bicycles for young children and luggage carriers for bicycles
• Ref Project: EN ISO 11243:2016 - Cycles - Luggage carriers for bicycles - Requirements and test methods (ISO 11243:2016)

Relations

• Revises: oSIST prEN ISO 11243:2022 - Cycles - Luggage carriers for bicycles - Requirements and test methods (ISO/DIS 11243:2022)
• Effective Date: 18-Jan-2023
• Replaces: SIST EN 14872:2006 - Bicycles - Accessories for bicycles - Luggage carriers
• Effective Date: 01-Oct-2016
• Revised: oSIST prEN ISO 11243:2022 - Cycles - Luggage carriers for bicycles - Requirements and test methods (ISO/DIS 11243:2022)
• Effective Date: 15-Jul-2018

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 11243:2016
01-oktober-2016
1DGRPHãþD
SIST EN 14872:2006
Kolesa - Prtljažniki za kolesa - Zahteve in preskusne metode (ISO 11243:2016)
Cycles - Luggage carriers for bicycles - Requirements and test methods (ISO
11243:2016)
Fahrräder - Gepäckträger für Fahrräder - Anforderungen und Prüfverfahren (ISO
11243:2016)
Cycles - Porte-bagages pour bicyclettes - Exigences et méthodes d'essai (ISO
11243:2016)
Ta slovenski standard je istoveten z: EN ISO 11243:2016
ICS:
43.150 Kolesa Cycles
SIST EN ISO 11243:2016 en

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

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SIST EN ISO 11243:2016
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SIST EN ISO 11243:2016
EN ISO 11243
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2016
EUROPÄISCHE NORM
ICS 43.150 Supersedes EN 14872:2006
English Version
Cycles - Luggage carriers for bicycles - Requirements and
test methods (ISO 11243:2016)

Cycles - Porte-bagages pour bicyclettes - Exigences et Fahrräder - Gepäckträger für Fahrräder-

méthodes (ISO 11243:2016) Anforderungen und Prüfverfahren (ISO 11243:2016)
This European Standard was approved by CEN on 4 June 2016.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this

European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references

concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN

member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by

translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11243:2016 E

worldwide for CEN national Members.
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SIST EN ISO 11243:2016
EN ISO 11243:2016 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

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SIST EN ISO 11243:2016
EN ISO 11243:2016 (E)
European foreword

This document (EN ISO 11243:2016) has been prepared by Technical Committee ISO/TC 149 “Cycles”

in collaboration with Technical Committee CEN/TC 333 “Cycles” the secretariat of which is held by UNI.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by January 2017, and conflicting national standards shall

be withdrawn at the latest by January 2017.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent

rights.
This document supersedes EN 14872:2006.

This document has been prepared under a mandate given to CEN by the European Commission and the

European Free Trade Association.

According to the CEN-CENELEC Internal Regulations, the national standards organizations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,

France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,

Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
Endorsement notice

The text of ISO 11243:2016 has been approved by CEN as EN ISO 11243:2016 without any modification.

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SIST EN ISO 11243:2016
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SIST EN ISO 11243:2016
INTERNATIONAL ISO
STANDARD 11243
Second edition
2016-06-15
Cycles — Luggage carriers for bicycles
— Requirements and test methods
Cycles — Porte-bagages pour bicyclettes — Exigences et méthodes
Reference number
ISO 11243:2016(E)
ISO 2016
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SIST EN ISO 11243:2016
ISO 11243:2016(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2016, Published in Switzerland

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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2016 – All rights reserved
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SIST EN ISO 11243:2016
ISO 11243:2016(E)
Contents Page

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

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

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

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

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

4 Classification ............................................................................................................................................................................................................ 2

5 Requirements and test methods .......................................................................................................................................................... 3

5.1 General ........................................................................................................................................................................................................... 3

5.2 Tolerances ................................................................................................................................................................................................... 3

5.3 Sharp edges ................................................................................................................................................................................................ 4

5.4 Security of safety-related fasteners....................................................................................................................................... 4

5.4.1 Security of screws ........................................................................................................................................................... 4

5.4.2 Minimum breaking torque ...................................................................................................................................... 4

5.4.3 Fixation elements ............................................................................................................................................................ 4

5.5 Crack detection methods ................................................................................................................................................................ 4

5.6 Dimensions ................................................................................................................................................................................................. 4

5.7 Protrusions ................................................................................................................................................................................................. 4

5.8 Assembly ...................................................................................................................................................................................................... 4

5.9 Rear luggage carriers — Provision for lighting .......................................................................................................... 5

5.10 Strength under high and low temperature ..................................................................................................................... 5

5.10.1 General...................................................................................................................................................................................... 5

5.10.2 Requirement ........................................................................................................................................................................ 5

5.10.3 High temperature test — Test method ......................................................................................................... 5

5.10.4 Low temperature test — Test method .......................................................................................................... 5

5.11 Dynamic load tests ............................................................................................................................................................................... 5

5.11.1 Requirement ........................................................................................................................................................................ 5

5.11.2 General test method ...................................................................................................................................................... 5

5.11.3 Vertical test method ...................................................................................................................................................... 9

5.11.4 Lateral test method ........................................................................................................................................... ............. 9

5.12 Static load test — Vertical load ................................................................................................................................................. 9

5.12.1 Requirements ..................................................................................................................................................................... 9

5.12.2 Test method .......................................................................................................................................................................... 9

5.13 Static load test — Lateral load ................................................................................................................................................10

5.13.1 Requirement .....................................................................................................................................................................10

5.13.2 Test method .......................................................................................................................................................................10

6 Marking .......................................................................................................................................................................................................................12

6.1 Requirements ........................................................................................................................................................................................12

6.2 Durability test .......................................................................................................................................................................................12

6.2.1 Requirements ..................................................................................................................................................................12

6.2.2 Test method .......................................................................................................................................................................12

7 Instructions .............................................................................................................................................................................................................13

8 Test report ................................................................................................................................................................................................................13

Annex A (informative) Typical test configuration ...............................................................................................................................14

Annex B (informative) Longitudinal dynamic load test .................................................................................................................16

Annex C (informative) Examples of carrier configurations .......................................................................................................18

Bibliography .............................................................................................................................................................................................................................20

© ISO 2016 – All rights reserved iii
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SIST EN ISO 11243:2016
ISO 11243:2016(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 11243:1994), which has been technically

revised.
iv © ISO 2016 – All rights reserved
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SIST EN ISO 11243:2016
ISO 11243:2016(E)
Introduction

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

aim has been to ensure that luggage carrier 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 the luggage

carrier, 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.
© ISO 2016 – All rights reserved v
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SIST EN ISO 11243:2016
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SIST EN ISO 11243:2016
INTERNATIONAL STANDARD ISO 11243:2016(E)
Cycles — Luggage carriers for bicycles — Requirements
and test methods
1 Scope

This International Standard specifies safety and performance requirements for the design and testing

of luggage carriers intended for mounting (with or without tool) above and adjacent to the wheels of

cycles and lays down guide lines for instructions on the use and care of such luggage carriers.

This International Standard does not apply to removable luggage (for example, handlebar bags or

baskets that are not permanently attached).

Toy carrier intended to be mounted on bicycles for young children in the scope of ISO 8098 are not

covered by this International Standard.
2 Normative references
There are no normative references cited in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
cycle

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
3.2
luggage carrier

device, including containers such as baskets, that is mounted and permanently attached above and/or

adjacent to the rear wheel(s) (in the case of a rear luggage carrier) or front wheel(s) (in the case of a

front luggage carrier) of a cycle and that is exclusively designed for carrying luggage or children in

child-seats
3.3
luggage carrier platform

flat part of the luggage carrier (3.2) upon which loads may be placed or fixed, or the flat top rail from

which panniers may be hung, or the bottom part of a container
Note 1 to entry: The bottom part of a container, for example a basket.
3.4
luggage carrier platform length
maximum overall length of the luggage carrier platform (3.3)
3.5
visible crack
crack which results from a test, wherein that crack is visible to the naked eye
3.6
fracture
unintentional separation into two or more parts
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SIST EN ISO 11243:2016
ISO 11243:2016(E)
3.7
toy carrier
carrier with a part intended for containing a toy of a maximum weight of 1 kg
3.8
integrated frame luggage carrier
luggage carrier (3.2) which is permanently attached
Note 1 to entry: Luggage carrier welded to the frame.
3.9
normal rear carrier

rear carrier supported by fixings to the bicycle frame close to the rear wheel axle

3.10
frame-mounted beam carrier

rear carrier that is structurally a cantilever, fixed to the bicycle frame in front and/or above the rear wheel

Note 1 to entry: It may also be fixed to the seat post, in addition to the frame, but receives no support from the

bicycle frame near to the axle of the rear wheel.
3.11
seat-post mounted beam carrier

rear carrier that is structurally a cantilever, fixed to the seat post of the bicycle without additional

fixings to the frame
3.12
above wheel front carrier

front carrier with a platform upon which loads can be placed above the front wheel

3.13
low-load front carrier

front carrier that is exclusively designed for carrying a pair of panniers, where the “platform” is a pair

of rails (from which the panniers hang), one each side of the wheel and not more than 200 mm above

the lower points of attachment of the carrier near to the axle of the front wheel

3.14
front mounted container

container such as a basket that is mounted and permanently attached above the front wheel of a bicycle

and that is exclusively designed for carrying luggage
3.15
maximum load capacity
maximum load that can be carried dependent upon the class of luggage carrier

Note 1 to entry: For load under 27 kg, the mark will warn the user that the product is not suitable for the

transportation of a child seat.
Note 2 to entry: Maximum load is defined in Table 1.
3.16
electrically power assisted cycle
EPAC

cycle, equipped with pedals and an auxiliary electric motor, which cannot be propelled exclusively by

means of this auxiliary electric motor, except in the start-up assistance mode
4 Classification

The manufacturer shall classify the carrier with the maximum load capacity for which it is intended,

taking into consideration any restrictions laid down in Table 1.
2 © ISO 2016 – All rights reserved
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SIST EN ISO 11243:2016
ISO 11243:2016(E)

If the carrier is intended to carry a child seat, designed to clamp onto the platform of a normal rear

luggage carrier and classified for 9 kg to 22 kg (see EN 14344), the maximum load capacity of the

luggage carrier shall be at least 27 kg.

In Table 1, the maximum limit (if any) for the load capacity is indicated for each type of luggage carrier

that falls within the scope of this International Standard. The applicable requirements and test methods

differ according to the type and maximum load capacity.
Table 1 — Maximum load capacity for the types of luggage carrier
Front-mounted
Rear luggage carriers Front luggage carriers
container
Type of
luggage
Beam
carrier
Normal Above wheel Low-load
Seat post- Frame-
mounted mounted
Maximum
load capacity, no limit 10 27 10 18 10

NOTE 1 For transporting heavier load, the maximum load specified in Table 1 can be exceeded provided that the bicycle

sustain such load.
NOTE 2 Maximum load capacity does not include the battery weight if so equipped.
NOTE Examples of carrier configurations are shown in Annex C.
5 Requirements and test methods
5.1 General

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

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

sequence of testing in the order: fatigue tests, static tests.
In the strength tests, all components shall be in the fully-finished condition.
The test frequency shall be stated in all fatigue test reports.

The luggage carrier shall be tested using the connecting interface position(s) and type(s) according to

the luggage carrier manufacturer’s specifications.

The luggage carrier shall be tested with all accessories provided (e.g. lock, pumps, etc.).

For luggage carrier intended to be fitted on an EPAC and designed to include a battery, the test shall be

performed with the maximum battery load [see 6.1 b)] in addition to the mass defined in Clause 4.

For integrated luggage carrier, all clauses apply except 5.8, 5.9 and 5.10.
5.2 Tolerances
Unless otherwise stated, the following tolerances shall be used:
— all forces shall have an accuracy of 0/+5 %;
— all masses shall have an accuracy of ±1 %;
— all dimensions shall have an accuracy of ±1 mm;
— all time measurements shall have an accuracy of ±1 s;
— all angles shall have an accuracy of ±1°;
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SIST EN ISO 11243:2016
ISO 11243:2016(E)
— all frequencies and linear stroke shall have an accuracy of ±5 %.
5.3 Sharp edges

Exposed edges that could come into contact with the rider’s or a transported person’s hands, legs, etc.,

during normal riding or normal handling and normal maintenance shall be neither sharp nor designed

such that injuries can arise when the bicycle is used correctly. Spring ends shall be rounded or fitted

with protective caps.
5.4 Security of safety-related fasteners
5.4.1 Security of screws

Any screws used in the internal assembly of the luggage carrier shall be provided with suitable locking

devices, for example, lock-washers, lock-nuts or stiff nuts.
5.4.2 Minimum breaking torque

The minimum breaking torque of screws for the fastening of the luggage carrier to the cycle shall be at

least 50 % greater than the manufacturer’s recommended tightening torque.
[1]

NOTE For example, mechanical and physical properties of bolts are specified in ISO 898-1.

5.4.3 Fixation elements

Fixation elements to the bicycle are not covered by this International Standard unless provided by the

luggage carrier manufacturer. In this case, fixation elements shall be used during testing.

5.5 Crack detection methods

Standardized methods may be used to emphasize the presence of cracks where visible cracks are

specified as criteria of failure in tests specified in this International Standard.

NOTE For example, suitable dye-penetrant methods are specified in ISO 3452-1, ISO 3452-2, ISO 3452-3 and

[2][3][4][5]
ISO 3452-4.
5.6 Dimensions
The dimensions of luggage carriers are not specified, except as follows.

Normal rear luggage carriers to which a child-seat could be attached (see Clause 4) shall have a luggage-

carrier platform width of 175 mm maximum.
5.7 Protrusions

This requirement is intended to address the hazards associated with the users of bicycles falling on

projections or rigid components on a bicycle, possibly causing internal injury or skin puncture.

A screw thread that is an exposed protrusion shall be limited to a protrusion length of one major

diameter of the screw beyond the internally threaded mating part.
5.8 Assembly

When attached to a fixture resembling a bicycle (or attached to a bicycle) and if necessary assembled

in accordance with the luggage carrier manufacturer’s instructions, the luggage carrier parts shall be

firmly joined and fixed using the fixing devices provided or specified by the manufacturer.

4 © ISO 2016 – All rights reserved
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SIST EN ISO 11243:2016
ISO 11243:2016(E)
5.9 Rear luggage carriers — Provision for lighting

The rear aspect of any rear luggage carrier not equipped with an integral rear lamp and reflector can

be equipped with a bracket or brackets, either as an integral part or separate accessory (or accessories)

to allow the fitting of a rear lamp and reflector.

When this requirement is satisfied by the provision of separate accessories, these accessories should be

included when the luggage carrier is sold.
5.10 Strength under high and low temperature
5.10.1 General

The requirements in 5.10.2 apply only to carriers of plastics or metal and plastics.

5.10.2 Requirement

When tested by the method described in 5.10.3 and 5.10.4, there shall be no fractures or visible cracks

in any part of the luggage carrier, or any distortion which affects the function or safety of the luggage

carrier.
5.10.3 High temperature test — Test method

Store the luggage carrier for 4 h ± 1 h in a chamber at a temperature of 65 °C ± 5 °C. Remove and

immediately examine the luggage carrier to check if the requirements in 5.10.2 are fulfilled.

5.10.4 Low temperature test — Test method

Store the luggage carrier for 4 h ± 1 h in a chamber at a temperature of −20 °C ± 1 °C. Remove the

luggage carrier from the chamber and within 15 s, drop the carrier from a height of 1 m onto a smooth,

level, concrete floor. Drop the luggage carrier in such a way that the side hits the floor (the luggage

carrier is in horizontal position). Immediately examine the luggage carrier to check if the requirements

in 5.10.2 are fulfilled.
5.11 Dynamic load tests
5.11.1 Requirement

When tested by the methods described in 5.11.2, 5.11.3 and 5.11.4, there shall be no fractures or visible

cracks in any part of the luggage carrier. If the carrier is made of plastics or metal and plastics, it shall

be submitted to the tests in 5.10 before being tested according to 5.11, 5.12 and 5.13.

5.11.2 General test method

Secure the luggage carrier to a rigid fixture which resembles the part of the bicycle to which the

luggage carrier is designed to fit, using the fastening devices and screws supplied or specified by the

manufacturer. The orientation of the fixture shall be adjusted so that the luggage-carrier platform

becomes horizontal with any adjustable means of luggage carrier attachment fully extended. If other

adjustments are possible, they shall be made so that the luggage carrier is attached to the rig in a way

that resembles the most onerous situation that can occur in practice.
Tighte
...