ISO 6692:1981
(Main)Cycles - Marking of cycle components
Cycles - Marking of cycle components
Specifies the marking system recommended to the manufacturer so as to reduce risks of incompatibility between components of bicycles produced according to new ISO Standards and traditional components. This problem of selection of the appropriate component will make itself felt above all at the level of the repair of bicycles and the distribution of spare parts; it will be necessary for this distinguishing mark to be universal, standardized and practical.
Cycles — Marquage des pièces de cycles
General Information
- Status
- Published
- Publication Date
- 30-Apr-1981
- Technical Committee
- ISO/TC 149 - Cycles
- Drafting Committee
- ISO/TC 149 - Cycles
- Current Stage
- 9093 - International Standard confirmed
- Start Date
- 28-Oct-2025
- Completion Date
- 13-Dec-2025
Overview
ISO 6692:1981, titled Cycles - Marking of Cycle Components, is an international standard developed by the International Organization for Standardization (ISO). This standard specifies a universal system for marking bicycle components to reduce the risk of incompatibility between parts manufactured according to new ISO standards and traditional components. The marking system is essential for ensuring the correct selection and compatibility of spare parts, especially during bicycle repair and maintenance.
By establishing a standardized and practical marking convention, ISO 6692 helps manufacturers, distributors, and repair professionals identify and match components accurately across different thread and sizing systems. This standard was developed in response to the coexistence of the metric system and the British Standard Cycle (BSC) thread system, which have historically caused compatibility challenges.
Key Topics
Scope and Purpose
ISO 6692 targets the clarification and differentiation of bicycle components that use either metric or BSC thread standards. It applies to various cycle parts such as freewheels, hubs, bottom bracket cups, axles, cranks, pedals, and handlebar stems.Marking System
The standard defines symbols and markings that manufacturers must place directly on components and packaging for clear identification:- Metric threads are marked with an "M" followed by the diameter and pitch in millimeters (e.g., M35x1).
- BSC (inch) threads are marked with a "B" followed by diameter in inches and threads per inch (e.g., B1.375x24).
- Variations accommodate different surface space availability – from full detailed markings when space allows, to simplified markings when space is limited.
Design Requirements
The marking:- Must be universal and understandable worldwide,
- Standardized to ensure consistency across manufacturers,
- Practical by being easy to apply and clearly visible on all relevant bicycle components.
Compatibility Considerations
This standard addresses the incompatibility risk between the metric and BSC systems which are not interchangeable. Without clear marking, mismatched components can lead to mechanical failure or damage.
Applications
ISO 6692 is primarily useful for:
Bicycle Manufacturers
Ensuring components are labeled properly to assist compatibility in assembly and avoid customer confusion.Repair Shops and Technicians
Quickly identifying the thread systems and sizes of components to order or fit correct replacement parts.Spare Parts Distributors
Simplifying inventory management and preventing shipment errors by clearly marking products.International Trade and Standardization
Facilitating worldwide harmonization of bicycle component specifications to reduce market fragmentation.
Related Standards
ISO 6698 - Cycles: Screw threads used to assemble freewheels on bicycle hubs
This related draft standard complements ISO 6692 by focusing specifically on thread specifications for freewheel assembly, supporting the broader goal of component compatibility.Additional ISO standards in the cycles category may cover safety, frame dimensions, or performance that collectively help maintain uniformity and quality in bicycle production.
ISO 6692:1981 serves as a foundational guideline for the marking and identification of bicycle components, enabling safer, more efficient repairs, maintenance, and cross-border commerce. Adopting this international standard reduces the risk of mechanical incompatibility and fosters confidence among bicycle users and professionals worldwide.
ISO 6692:1981 - Cycles -- Marking of cycle components
ISO 6692:1981 - Cycles -- Marquage des pieces de cycles
ISO 6692:1981 - Cycles -- Marquage des pieces de cycles
Frequently Asked Questions
ISO 6692:1981 is a standard published by the International Organization for Standardization (ISO). Its full title is "Cycles - Marking of cycle components". This standard covers: Specifies the marking system recommended to the manufacturer so as to reduce risks of incompatibility between components of bicycles produced according to new ISO Standards and traditional components. This problem of selection of the appropriate component will make itself felt above all at the level of the repair of bicycles and the distribution of spare parts; it will be necessary for this distinguishing mark to be universal, standardized and practical.
Specifies the marking system recommended to the manufacturer so as to reduce risks of incompatibility between components of bicycles produced according to new ISO Standards and traditional components. This problem of selection of the appropriate component will make itself felt above all at the level of the repair of bicycles and the distribution of spare parts; it will be necessary for this distinguishing mark to be universal, standardized and practical.
ISO 6692:1981 is classified under the following ICS (International Classification for Standards) categories: 43.150 - Cycles. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO 6692:1981 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
ational Standard
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION.ME~YHAPO~HAR OPTAHM3Al&lfl fl0 CTAH~APTM3AL\MM.ORGANISATION INTERNATIONALE DE NORMALISATION
Marking of cycle components
Cycles -
Marquage des pikes de cycles
Cycles -
First edition - 1981-05-15
Ref. No. ISO 66924981 (E)
UDC 629.118.3.02-777
Descriptors : road vehicles, bicycles, components, marking .
Price based on 2 pages
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of
national Standards institutes (ISO member bedies). The work of developing Inter-
national Standards is carried out through ISO technical committees. Every member
body interested in a subject for which a technical committee has been set up 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.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for approval before their acceptance as International Standards by
the ISO Council.
International Standard ISO 6692 was developed by Technical Committee ISO/TC 149,
Cycles, and was circulated to the member bodies in December 1979.
lt has been approved by the member bodies of the following countries :
Australia France Netherlands
Austria
Germany, F. R. Poland
Belgium India Romania
Brazil Israel South Africa, Rep. of
Bulgaria Italy
Switzerland
Canada Japan United Kingdom
China
Korea, Rep. of USA
Czechoslovakia Mexico
USSR
No member body expressed disapproval of the document.
0 International Organkation for Standardkation, 1981
Printed in Switzerland
ISO 66924981 (E)
INTERNATIONAL STANDARD
Cycles - Marking of cycle components
0 Introduction No international convention exists for establishing a System of
marking allowing one to differentiate efficiently between com-
ponents of the two Systems. This absence of a convention has
Certain cycle components are made according to two different
Systems, namely : not had any unfortunate consequences up to the present time
since in each country only one System was used.
-
the metric System,
-
the British Standard Cycle (BSC) thread System.
1 Scope and field of application
This is notably the case :
This International Standard specifies the marking System
recommended to the manufacturer so as to reduce risks of in-
-
with free wheels (screw thread for assembly into the
compatibility between components of bicycles
...
Norme internationale
INTERNATIONAL ORGANISATION FOR sTANOARO~ZATIONOME~YHAPO~HAF oPrAHM3ALpm no cTAH~APTH3A~~M~RGANISATioN iNTERNmoNALE DE N0RhdALisATi0~
Cycles - Marquage des pièces de cycles
- Marking of cycle components
Cycles
Première édition - 1981-05-15
CDU 629.118.3.02-777
Réf. no : ISO 66924981 (F)
iL
Descripteurs : véhicule routier, bicyclette, composant, marquage.
Prix basé sur 2 pages
Avant-propos
L’ISO (Organisation internationale de normalisation) est une fédération mondiale
d’organismes nationaux de normalisation (comités membres de I’ISO). L’élaboration
des Normes internationales est confiée’ aux comités techniques de I’ISO. Chaque
comité membre intéressé par une étude a le droit de faire partie du comité technique
correspondant. Les organisations internationales, gouvernementales et non gouverne-
mentales, en liaison avec I’ISO, participent également aux travaux.
Les projets de Normes internationales adoptés par les comités techniques sont soumis
aux comités membres pour approbation, avant leur acceptation comme Normes inter-
nationales par le Conseil de I’ISO.
La Norme internationale ISO 6692 a été élaborée par le comité technique ISO/TC 149,
Cycles, et a été soumise aux comités membres en décembre 1979.
Les comités membres des pays suivants l’ont approuvée :
Afrique du Sud, Rép. d’ Chine Pays- Bas
Allemagne, R. F. Corée, Rép. de Pologne
Australie France Roumanie
Autriche Inde Royaume-Uni
Belgique Israël Suisse
Brésil Italie Tchécoslovaquie
Bulgarie Japon‘ URSS
Canada USA
Mexique
Aucun comité membre ne l’a désapprouvée.
0 Organisation internationale de normalisation, 1981
Imprimé en Suisse
ISO 66924981 (F)
NORME INTERNATIONALE
.3
Cycles - Marquage des pièces de cycles
Pour toutes ces pièces, les sytèmes métrique et BSC ne sont
0 Introduction
pas interchangeables et les risques d’incompatibilité existent
Certains composants de cycles sont réalisés suivant deux systè-
dans de nombreux cas.
mes différents, à savoir :
Aucune convention internationale n’existe pour l’établissement
- le système métrique,
d’un marquage permettant de différencier efficacement les
composants des deux systèmes. Cette absence de convention
- le système de filetage de la British Standard Cycle
était jusqu’à présent sans conséquences néfastes, dans la
(BSC).
mesure où dans chaque pays n’existait qu’un seul système.
Ceci est notamment le cas :
1 Objet et domaine d’application
- des roues libres (filetage de fixation sur le moyeu
conformément à I’ISO 66981,
La présente Norme internationale définit le système de mar-
quage recommandé
...
Norme internationale
INTERNATIONAL ORGANISATION FOR sTANOARO~ZATIONOME~YHAPO~HAF oPrAHM3ALpm no cTAH~APTH3A~~M~RGANISATioN iNTERNmoNALE DE N0RhdALisATi0~
Cycles - Marquage des pièces de cycles
- Marking of cycle components
Cycles
Première édition - 1981-05-15
CDU 629.118.3.02-777
Réf. no : ISO 66924981 (F)
iL
Descripteurs : véhicule routier, bicyclette, composant, marquage.
Prix basé sur 2 pages
Avant-propos
L’ISO (Organisation internationale de normalisation) est une fédération mondiale
d’organismes nationaux de normalisation (comités membres de I’ISO). L’élaboration
des Normes internationales est confiée’ aux comités techniques de I’ISO. Chaque
comité membre intéressé par une étude a le droit de faire partie du comité technique
correspondant. Les organisations internationales, gouvernementales et non gouverne-
mentales, en liaison avec I’ISO, participent également aux travaux.
Les projets de Normes internationales adoptés par les comités techniques sont soumis
aux comités membres pour approbation, avant leur acceptation comme Normes inter-
nationales par le Conseil de I’ISO.
La Norme internationale ISO 6692 a été élaborée par le comité technique ISO/TC 149,
Cycles, et a été soumise aux comités membres en décembre 1979.
Les comités membres des pays suivants l’ont approuvée :
Afrique du Sud, Rép. d’ Chine Pays- Bas
Allemagne, R. F. Corée, Rép. de Pologne
Australie France Roumanie
Autriche Inde Royaume-Uni
Belgique Israël Suisse
Brésil Italie Tchécoslovaquie
Bulgarie Japon‘ URSS
Canada USA
Mexique
Aucun comité membre ne l’a désapprouvée.
0 Organisation internationale de normalisation, 1981
Imprimé en Suisse
ISO 66924981 (F)
NORME INTERNATIONALE
.3
Cycles - Marquage des pièces de cycles
Pour toutes ces pièces, les sytèmes métrique et BSC ne sont
0 Introduction
pas interchangeables et les risques d’incompatibilité existent
Certains composants de cycles sont réalisés suivant deux systè-
dans de nombreux cas.
mes différents, à savoir :
Aucune convention internationale n’existe pour l’établissement
- le système métrique,
d’un marquage permettant de différencier efficacement les
composants des deux systèmes. Cette absence de convention
- le système de filetage de la British Standard Cycle
était jusqu’à présent sans conséquences néfastes, dans la
(BSC).
mesure où dans chaque pays n’existait qu’un seul système.
Ceci est notamment le cas :
1 Objet et domaine d’application
- des roues libres (filetage de fixation sur le moyeu
conformément à I’ISO 66981,
La présente Norme internationale définit le système de mar-
quage recommandé
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...