Bike slid out from under him. Looks like a high-side from this angle, but the bike lands in front of him, he doesn't get tossed over it like a high side. Watch it closely, the bike goes down, and he goes off of it. The bike landed on it's left side. This bike was heavy, so it had more than enough mass to put him down hard. If he were going faster, he likely would have been tossed over the right side of the bike in a high side crash.
TomAto, tomahto, either way, his day sucked.
Sombo was closer than I was, he looked out to me. But if he was responding right away, good thing.
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