pull
n.— «Done properly, a team time trial is nearly mesmerizing to watch. Most teams ride in single file, with the riders taking turns at the front—taking a “pull,” in cycling parlance—before giving way and falling to the rear of the line, then working steadily forward again.» —“Team time trial is next test for Armstrong, new team” by Bob Ford in Tours, France Mercury News (San Jose, California) July 4, 2005. (source: Double-Tongued Dictionary)