Ready for a bike ride? Aim for 9–12 months when neck muscles support a helmet....

https://www.mediafire.com/file/7o6fhycs59kemfn/pdf-41704-93589.pdf/file

Ready for a bike ride? Aim for 9–12 months when neck muscles support a helmet. If your baby sits upright unsupported, front or rear rack-mounted seats work great. Before that milestone, use a trailer with an infant insert. Prioritize neck stability!