Well my Sunday afternoon ride was cut short today, about a mile and a half from home I shifted gears and heard a loud pop, suddenly my crank is free spinning. I pull over and find the chain broken. I lost at least one link from the looks of it.
Just not sure how it happened. I did not shift under load, and in fact I was headed downhill when it happened. It is still under warranty, though I'm not sure if it will be covered. I'm more worried about what caused it, and making sure it does not happen again.
I also did not think I cross chained it, I was in the low (small) end of the cassette in the back and was going from the middle to the large in the front.