Is there such thing as a learning curve for stationary trainers? Ive wonked out both of my knees on separate occasions on the trainer using the same bike I like to train on. Both times it was the lower inside of either knee. What gives? I try to stretch and did both of the wonks just spinning..Riding in the field on this bike works fine. I did recently drop the bars a bit but my low back and arms have conversely never felt better....im stumped...overtraining? too much pedal float (speedplay x2s).