Thump

The sound Nicki and her bike make as they fall over. I'm told that pretty much everyone falls over at some point when they are learning to ride a road bike clipped in. True to what I've also been told, there is that instant you realized you are falling over (because you didn't unclip and tried to put your foot out) and there is enough time to anticipate the fall but not enough time to stop yourself. You also don't want to stop yourself at that point with your arm because you'll likely break it, it's much better to just tuck it in. Also true to biker form was "Oh, I hope I didn't break anything on my bike." I heal, my bike doesn't.