Very cool little video about the physics behind one of the most demanding race courses in all of sport, The Kitzbuehel.  You can watch these guys all day in awe that they hold it together flying down this insane course, but to know the numbers behind the physical demands gives us another level of appreciation.

Francis Xavier is a seasoned writer for Unofficial Networks, bringing a lifetime of outdoor experience to his work. Having lived in a ski resort town for years he has a deep connection to mountain culture.... More by Francis Xavier