This document specifies safety and performance requirements for the design, assembly, and testing of bicycles and sub-assemblies, and lays down guidelines for manufacturers’ instructions on the use and care of such bicycles. This document applies to young adult bicycles with a maximum saddle height of 635 mm or more and less than 750 mm, city and trekking bicycles, mountain bicycles, and racing bicycles within a maximum saddle height of 635 mm or more, including folding bicycles and shared bicycles (excluding locking devices). This document does not apply to specialized types of bicycles, such as delivery bicycles, recumbent bicycles, tandems, BMX bicycles, and bicycles designed and equipped for use in severe applications such as sanctioned competition events, stunting, or aerobatic manoeuvres.