In two completely different accidents (one involving ice, one involving rock climbing) I have managed to dislocate both knee caps. In theory, my knees are mostly back to functional, but the one place I have really noticed problems is in bike frame geometry. I'm fine on my vintage Raleigh sports, but anything mountain bike shaped is impossible to ride more than a block or too.
Now my daughter is now four and I was planning on converting my Raleigh to a xtracycle for child transport, but I just heard back from xtracycle that it should be a 1980s or newer mountain or road bike. So.... does anyone have experience converting something city bike shaped or am I just SOL? Alternately, do you have a favourite kid transporting bike that might be easier on my knees? (not "comfort" geometry. For me that is even worse)
ETA: it's just the raleigh frame, I have all new components