I can't find any reliable information about how old a baby should be before you put them in a Baby Jogger or a BOB stroller (or a trailer behind my bike).
All the information seems to be general (i.e. not before six months) and possibly written by lawyers instead of doctors.
Can anyone here provide a link to some actual information (like a medical study) instead of rumors or product manuals?
Let's start with the assumption that the baby's head/neck would be well-supported and not swing from side to side.
Thanks.