If you're expecting this to be a fail video, you will be disappointed. Cyclist Eskil Ronningsbakken of Norway in insane. That's the only explanation that we could come up with. There are bike stunts and then there are suicide missions and Ronningsbakken is stuck in the middle, leaning more towards the latter. He took his bicycle up into the mountains near Trollstigen to a public road on a wet day, which in itself is dangerous. To kick things up a notch, the daredevil decided that he wanted to tackle the steep, winding mountain roads backwards.
There is no "this is a closed course and the rider is a trained professional" disclaimer at the bottom of this video...this is real. Spoiler: he makes it all the way down and then rides back up...backwards.