The Moment Series - Shane Kelly

1996. Shane Kelly is the world record holder and world champion in the Men’s Kilometre Time Trial, a feat for which he is dubbed ‘The Minute Man’. He’s the one to beat. The favourite for gold.
This is his 1996 Atlanta Olympic Games moment.

[@JamieSmith-fz2mz]

I was in the booth that day with the announcers and timing people, and we all thought that he was allowed a restart only if he crashed in the first half lap, so we were expecting him to simply topple over at slow speed. We had seen that happen before. But he didn't.
What's the rulebook say?