1、 ISO 2016 Cycles Handlebar centre and stem dimensions Cycles Dimensions du centre du guidon et de la potence INTERNATIONAL STANDARD ISO 6699 Second edition 2016-08-15 Reference number ISO 6699:2016(E) ISO 6699:2016(E)ii ISO 2016 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in
2、 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
3、 be requested from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyrightiso.org www.iso.org ISO 6699:2016(E)Foreword iv 1 Scope . 1
4、 2 Normative references 1 3 Dimensions . 1 3.1 External diameter of the handlebar 1 3.2 Internal diameter of the stem clamp 2 3.3 Assembly conditions 2 ISO 2016 All rights reserved iii Contents Page ISO 6699:2016(E) Foreword ISO (the International Organization for Standardization) is a worldwide fed
5、eration 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 comm
6、ittee. 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 a
7、nd 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, Pa
8、rt 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
9、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
10、terms and expressions related to conformit y assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html. The committee responsible for this document is ISO/TC 1
11、49, Cycles. This second edition cancels and replaces the first edition (ISO 6699:1990), which has been technically revised with the following changes: a) Table 1, with common stem clamp diameters and relating tolerances, has been added; b) Figure 1 has been simplified; c) Figure 2 has been updated.i
12、v ISO 2016 All rights reserved INTERNATIONAL ST ANDARD ISO 6699:2016(E) Cycles Handlebar centre and stem dimensions 1 Scope This International Standard specifies the dimensions and tolerances to ensure secure assembly between the stem and the handlebar centre of a bicycle. This International Standar
13、d is applicable for bicycles intended for use on public roads, and on which the saddle can be adjusted to provide a saddle height of 635 mm or more. This International Standard is not applicable for specialized types of bicycle, such as tradesmens delivery bicycles, tandems, toy bicycles and bicycle
14、s designed and equipped for use in sanctioned competitive events. 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,
15、the latest edition of the referenced document (including any amendments) applies. ISO 4210-2:2015, Cycles Safety requirements for bicycles Part 2: Requirements for city and trekking, young adult, mountain and racing bicycles 3 Dimensions 3.1 External diameter of the handlebar The external diameter o
16、f the handlebar, D, at the stem interface shall be according to Table 1 (see Figure 1). Figure 1 External diameter of the handlebar ISO 2016 All rights reserved 1 ISO 6699:2016(E) Table 1 Dimensions and tolerances Dimensions in millimetres Handlebar clamp diameter Stem clamp diameter D d a a aFor ha
17、ndlebars which are produced by hydroforming, the dimensions and tolerances could be mm for D and mm for d, based on the characteristics of the manufacturing process. 3.2 Internal diameter of the stem clamp The internal diameter of the stem clamp, d, shall be according to Table 1 (see Figure 2). Figu
18、re 2 Internal diameter of the stem clamp The internal diameter of the stem clamp can be measured with a tube of the corresponding external diameter. 3.3 Assembly conditions The assembly of the stem and the handlebar bend, with the clamping bolt tightened with the torque recommended by the manufacturer, shall comply with the requirements of ISO 4210-2:2015, 4.7.2 ISO 2016 All rights reserved ISO 6699:2016(E) ISO 2016 All rights reserved IC S 43.150 Price based on 2 pages
