Sandbagging
Gents: sandbagging is deceptively underperforming with the purpose of gaining an advantage later in the competition. Froome and Porte were not sandbagging in Colorado. No knowledgeable person was fooled into believing that they're actually mediocre stage racers, and they gained no advantage thereby. They did not target Colorado. They targeted races such as the Tour de France and the World Championships. You don't ride as hard as possible every race, if you want to win any.