• Instead of selling and sticking to gears, Andy, have you thought about dropping the gearing? You could sell your geared bike instead. :)

    But seriously, have a look around at the various knee threads on here if you haven't already. There's also yoga as a possibility--really helps a lot (http://www.lfgss.com/thread31438.html). Presumably you've gone for physio? bluerip00's thread is for you: http://www.lfgss.com/thread29902.html

    If your cartilage problem is really bad, I'd recommend staying off the bike for a while, anyway. (I know no-one ever does this--I didn't, either.) Do yoga/physio until you feel better. Good luck.

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