At 0:26, we see a biker almost come to a complete stop in front of the SUV.
Inside the SUV is a man, his wife and their child.
Outside the SUV...a lot of bikers apparently riding together.
Then...it appears the SUV hit the biker and stopped.
So did the bikers and traffic.
Everybody stopped trying to figure out what the hell.
We don't know what's actually happening because dude with the helmet camera is up a ways.