Originally Posted by operator
If you weren't on a fix, i'd tell you that your seat height was too high. But you should check out your cleats first for wear. Even riding more upright or in a different position can cause knee pain.
I read somewhere that if you're having soreness in the front of your knee you should make sure your seat isn't too low, but if it's the back, perhaps your seat is too high (and you're hyper-extending the joint at the bottom of your pedal stroke). I'm considering picking up a different stem since if I made my seat any higher right now my bars would be too low.
I haven't changed anything in my set up recently though, so I think this is likely just something that has built up over time, especially (as TJ mentioned) since I've stepped up my distances lately.