Share 'cx technique - push or carry the bike on a run-up ?'

The current National CX Champion Tim Johnson almost always pushes his bike on run-ups, Mark McCormack almost always carries it. Most racers will use both ways depending on the nature of the run-up section. See a variety of both techniques used by Elite Men and Elite Women on a short but extremely steep hill in 2004 CSI CX race in Northampton, MA: http://www.cyclocrossvideos.com/cx/2004_cx/2004_c…