per hour on saranegro, an active volcano in nicaragua. it is to be the last ride of his professional career. known as the red baron, barone prepares for the run with a specially designed mountain bike prototype. he makes the trek up saranegro and gets ready to go. he mounts the bike and hits the slope. he flies down the volcano at a dizzying speed. suddenly, the bicycle seems to disintegrate underneath him. he s hurdled over the handlebars. his helmet ripped off him. he tumbles down the slope for nearly 110 yards. when he finally comes to a stop, he is still conscious but barely.