I feel pain in the exact same spot in both legs after approx. 15 miles of road cycling or 3 miles of jogging, without fail. I can do more than 15 miles of riding through the mtb trails w/ no pain. I guess it's the repetitiveness of riding on the road (or jogging) that leads to the pain. I've looked at diagrams of the leg and the pain seems to be where the biceps femoris connects to the head of the fibula. Basically, the spot behind the knees on the outer-sides where that long ligament ends just below the knees. It's pretty easy to see and feel. This is horribly depressing since I have to stop and get off the bike (or stop jogging) when I have so much energy left in me. I'm only 38yrs old. I've gone on 2-3 rides a week, each about 6 to 15 miles for about 2 years now. Does this sound like weak muscles being overused or possibly something else? If this is familiar sounding to anyone, any suggestions on how to address this issue??