OMG!!! Is This Bravery or Madness?

An insane cyclist has taken death-defying to a new and most dangerous level by riding his bike horizontally on a very steep vertical surfaced rock.

Michal Kollbeck risked his life to take on the White Line in Sedona, known as a near impossible route carved into a sheer rock face.

The jaw-dropping one minute clip filmed by an overhead drone camera has appeared on YouTube and shows the daredevil gradually making his way along the route in Arizona, America. He has reportedly survived many accidents and isn't planningon stopping anytime soon. See more pics after the cut.