More than 8,000 vertical feet of downhill cycling lies between competitors and victory. If the descent isn't challenging enough, racers have to take on each stage—the super-downhill, the cross-country race, the chainless downhill, and the regular downhill—all on the same bike. With exhilarating riding all day and raging parties all night, this event will keep your heart racing all weekend long. Fri 4 p.m. Sat 10 a.m., 3 p.m. Sun 11 a.m.