GB/T 31887.4-2025
ActiveCycles—Lighting and retro-reflective devices—Part 4: Lighting systems powered by the cycle's movement
自行车 照明和回复反射装置 第4部分：自行车发电机供电的照明系统
Application Summary AI generated
This standard specifies technical requirements and test methods for bicycle lighting systems powered by the cycle's movement, such as hub dynamos or friction generators. It applies to bicycles intended for road use, ensuring that the lighting system provides adequate illumination and meets safety regulations for visibility in low-light conditions. The standard is used by manufacturers and testing laboratories to verify performance, durability, and compliance with national traffic safety standards.
Related Standards
GB/T 19994-2005
General Technical Requirements for road bicycles
GB/T 3579-2006
Cycle chains - Characteristics and test methods
GB/T 22791-2008
Bicycles - Lighting equipment
GB/T 22790-2008
Cycles - Luggage carriers
GB/T 26846-2011
Lead-out wire and connector of motor and controller used for electric bicycles
GB/T 31887-2015
Cycles—Retro-reflective devices
GB/T 26774-2016
Technical specification for car carriers
GB/T 31887.3-2019
Cycles—Lighting and retro-reflective devices—Part 3: Installation and use of lighting and retro-reflective devices
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.