I'm not quite sure if this is the right forum for this, but I couldn't seem to find any for injuries. I've started to experience pain in my left knee recently, and I'm going to see a doctor, but I was just wondering what could be causing this so it doesn't happen again. Previous to this I had gone in for a peace-of-mind visit for my right knee, but there was no pain in that just a slight sensation I would feel sometimes. My X-ray was fine and so he just gave me a knee brace. I don't know if the knee brace could somehow be correlated to this pain, but I rode without it today and still was experiencing the pain. It doesn't set in immediately, usually more around 8-15 miles ha have to be put in before I start to notice it developing. In terms of fit, I've never had my biked fit professionally but the saddle height is good.