1.1 这些试验方法和规范涵盖了所有配备手动固定系统（如快速释放）的自行车前轮固定系统的标准。 1.2 本规范仅适用于配备手动固定系统的自行车，不适用于工具操作的车轮固定系统。 1.3 本规范旨在定义一次和二次车轮固定系统的性能，重点是防止车轮意外分离，并防止固定系统与盘式制动器转子或车轮意外接触。 1.4 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.5 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.6 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。

1.1 These test methods and specifications cover the standard for front wheel retention systems for all bicycles equipped with manually operated retention systems such as a quick release. 1.2 This specification is only for bicycles equipped with manually operated retention systems, and does not apply to tool-operated wheel retention systems. 1.3 The intent of this specification is to define the performance of primary and secondary wheel retention systems, with the focus on preventing unintended wheel separation and prevention of unintended contact of the retention system with the disc brake rotor or wheel. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.