Here's my situation. I bought some wheels from a friend a year ago. I took the old rear and hung it up in the garage. The frame is now becoming my trainer frame and the new wheels went on a new frame. I stuck the old rear on the trainer frame and discovered that the axle is bent. I don't remember this happening while I was riding the wheel, so it must have occurred while it was hanging in the garage. Granted, I've moved since then, so maybe it got banged around, but is this likely or did I just miss it being bent when I originally took the wheel off?