I guess I'm too chicken to ride that speed on gravel roads I don't know. I couldn't tell from the video with any real detail what he hit that dumped his bike. The surface in the video sure looks a lot less "gravely" than my usual rides. I have to say I generally do not have a tight grip on my bars either, just sort of let them float under my hands...maybe I need to ride a little tighter after watching this.....