Deemed the hardest mountain bike race in the world, the MB Race Culture Velo set in the French Alps features 70km, 100km and grueling 140km course option with over 7,000 meters of single-track climbs, and harrowing descents. On and off the track, the athletes encounter a few obstacles along the way. Rory tries to overcome her mountain biking inexperience and retain her racing legacy. Simon's bike goes missing and is forced to maneuver the rugged terrain on a rental and Hunter's cramping threatens to take him out of the race entirely. On a high note, Turbo is pacing ...