I just thought I would point out to everyone who hasn't seen it already, the elevation profile of the Singlespeed World Championships Course. Note that at one point, it reaches and 18% grade for at least a quarter mile. If you've ever climbed up Bartizan out in West County (anyone who was on the Death-By-Hills ride did in fact climb this) then you know what 18% feels like. It feels like the opposite of Xanadu, in my legs.
-Casey F. Ryback