Ready to start biking with your baby? Before using a trailer or seat, your...

https://spark-wiki.win/index.php/The_Ultimate_Guide:_How_to_Secure_and_Lock_Up_Your_Bike_with_a_Child_Seat

Ready to start biking with your baby? Before using a trailer or seat, your child must have solid head control and sit up unassisted. We break down the key developmental signs to help you choose the right gear and start your family rides safely.