What caused this guys accident??

[grendl]

Looks to me like the guy hit his brakes just as he passed over the sand or gravel that is coming out of the driveway. Noticed the two streaks of it over the white line.
His brake light flashes just as he crosses it IMHO..

[ReserveBum]

been real ugly if that guy didnt have a helmet on

[Old Ryder]

been real ugly if that guy didnt have a helmet on

It was ugly enough for me as it was.

Let me preach on it a while. You are not at Daytona. This is not a closed course racing surface. there are elements beyond your line of sight and reflexes and ability that make a high risk environment. Less than a half second makes a difference. I am not that good. Stupid hurts.

[srt8-in-largo]

With all this talk about grabbing front brakes in turns... how is it that trail braking is such a widely commended practice??

Unlike what the phrase may sound like, trail braking uses the front brakes in turns, not so much the rear brakes.

I think , you are right. Despite all speculations here is another fact , which makes me wander . Why this "filmmaker" didn't stop for help ? It would me my reaction at first .

This is something I've been thinking about after watching some Russian crash videos where people are laying un-moving on the ground... and other riders idle by like they're in a drive-through zoo.