No Chain Required

Check out this bitch'n Time Trial Event in California. It's a downhill time trial which courses Tuna Canyon and ends near Mailbu. The bikes have disc brakes, run 11-23 cassettes and are built for descending. This seems to be a cross between Mountain Bike Downhillers and Road Riders. If you page through, they have a video from a helmut cam of the course. Pretty cool stuff.

Red Bull Road Rage

Snail Dik