Curtis Keene spent 10 years dominating the fast-paced world of downhill mountain biking. Then, in 2012, he decided to give the growing sport of Enduro mountain biking a try. The new discipline clearly suited him, and that year he took home the overall championships title in the North American Enduro Series. Around the world, Enduro is still mostly made up of European competitors, so it’s no wonder the nickname American Dream has stuck.