Gearing

I see no problem in riding on 84" for racing and some training. My observation was that I don't think it is a sensible gear in the long term, especially if you are riding on undulating terrain or in urban areas, especially if you've had knee trouble previously.

This is all I meant really Dan. If the people who know about racing reckon you're doing it right and you've thought the implications through I'm happy, mainly because I don't know about these things. I just don't want you to hurt yourself!