My husband had no problems attaching this to his bike. My 20 month old fit into it perfectly and enjoyed his first bike ride. My only complaint is that this isn't sold in stores. I'm sure they would sell even more.
Went on easy, handle bar for baby comes very close to the bike seat so pretty close to the bike rider's back side but my daughter loves it and she is 11 months old, average height. Her legs do not reach the bottom yet so she just kicks them around as we ride around.