I was taking a road bike for the first time this season on a longer ride yesterday...75 miles never happened. I took the aluminium OCR, went 6 miles down the road and something did not seem right. When I soft pedaled it was tight and the chain would skip. I turned around and headed it back for home. I looked at it this morning and found one of the idler chain wheels was mostly froze up...no wonder that trainer was so much work. I went through it this morning and it is all good now.