Originally Posted by
Nightshade
Your fear is not irrational at all!! In fact, it is based on the fact that falling on your "bionic" knee will cause real problems for some.
That said, if you can't seem to get by this worry then consider a trike. ........
Since we are all different each person has to decide what makes them comfortable to ride since there really is something for everyone in cycling!!!!!
^^^ This!
I don't have any knee issues but my wife (65 yo) has had bilateral hip replacements and has a deadly fear of falling off of a DF bike (she's had two). She now rides a tadpole style, recumbent trike on a daily basis and enjoys each ride as much as I enjoy riding my road bike. I've never heard of a Day 6, but if you feel comfortable with riding it, by all means, do so. However, I would not rule out a recumbent trike if you can not overcome the fear of falling.