I think you all are going to tell me this is pedal placement issue, but I'm wondering if there may be something else. 2 weeks ago I went on a 30 mile ride, slow pace (about 15mph average) and not many hills. It was a very easy ride, barely even felt it. However, that night my left knee was really sore and the following day I could barely walk on it. A full week of ice and ibuprofen and its back to normal. I thought it must just be pedal position but it was only my left knee, the right knee was perfectly fine. I'm coming form mountain bikes, just started road riding and I am riding an OCR1 that fits me really well (or so I thought), could I just be doing something terribly wrong?