American Flyers is a 1985 film starring Kevin Costner, David Marshall Grant, Rae Dawn Chong, Alexandra Paul and Janice Rule about bicycle racing.
It was directed by John Badham and written by Steve Tesich (who had previously won an Oscar for Best Original Screenplay for another film featuring a bicycle race, 1979’s Breaking Away).
Sports physician Marcus Sommers (Costner) persuades his younger brother David (Grant) to train with him for a three-day bicycle race across the Rocky Mountains known as “The Hell of the West.”