WR's crash data in his get well thread made me think of doing this thread. I'm sure many of us have interesting data files that show speed abrubtly dropping to 0. Here is mine from Sunday. I had a few seconds to slow down from 40 on a descent, cleared the crash, then was struck from behind. The time scale isn't completely clear, but it was 9 seconds from 40 to 0, some of that I think was the bike on it's own...

there's more to riding than data.