That's really sad, he went over the bars? It's much harder to gear up on a bike ride than a motorcycle ride. Maybe it's the quiet, the serenity of the woods or the lightweight bicycle; but it's an illusion. 30mph into a tree or over the bars, and it doesn't matter if you're on a mc or mtb, it's going to hurt. Late last season I almost ate a big old rock when I went over the bars, and began gearing up at the expense of heat, climbing speed and duration of my rides. I guess it's the same mindset as ATGATT on a mc.