This makes sense...I tend to plantar-flex when I pedal, too. Any knee issues I have ever had are also limited to my right knee (every chronic, niggling running issue has always been on my right side, as a matter of fact). Thanks for that input, Knotted...that gives me an idea of what the issue could be. Is it possible that my right side has more limitation than my left?

The crazy thing...I badly sprained my left ankle this past Summer and I still don't have the ROM that I had pre-injury, but running on snow still bothers my right knee, not my left. Cycling doesn't bother my left side at all, just the right. Even after acute injury the only thing goofy on my left side is the healing ankle. Right side has never had any sort of acute injury and is still my chronically whiney side.