This epic endurance challenge takes you across 150 miles of challenging single-track through North Dakota's rugged Badlands, with the flexibility to complete it in one, two, three, or six days of riding. You'll be tackling one of the world's longest and most demanding continuous single-track trails, where success depends entirely on your own training, preparation, and determination—it's a personal battle against yourself, not the competition. This is the ultimate test of endurance and a truly radical accomplishment for any rider willing to take it on.