What would you do? C is 36 pounds, 36 1/2 inches tall (or so). The rest of the family wants to start bike riding regularly and we have been using a cheapo bike seat for C on the back of my bike for him since dh has the trail-a-bike on his for impulsive A. The problem is, I can no longer sit comfortably on my seat or get C out once he is in the seat...he is just too big. I have found 50 pound limit bike seats on-line which I am thinking is probably bigger than C's current seat (and withou the bar that we can't get his boat feet back through) but I wonder if a trailer would be easier to pull than having him behind me on the bike itself? Thoughts?