In 2017, Bert Blocken, professor at Eindhoven University of Technology in the Netherlands tried to answer that question in an article on Linkedin. He studied six different tuck positions, including Chris Froome’s now famous “super tuck.”

Which cyclist hill descent position is really superior? Froome, Pantani, Nibali or Sagan? Here is the scientific answer.

https://www.linkedin.com/pulse/which-cyclist-hill-descent-position-really-superior-froome-blocken