Bicycling down a mountain road of more than 2.5 miles with a 10 percent grade sounds pretty challenging.

Here are some ways to beef up the degree of difficulty.

-- Select a winding road such as the one by Trollstigen in Norway.
-- Pick a rainy day so the pavement is wet.
-- Do it while sitting backwards on the handlebars.

Eskil Ronningsbakken might not have deliberately selected a day with bad weather, but there is no question that this was his choice of venue.

"One of the most interesting mountain roads you'll ever find," Ronningsbakken says.

And unlike movies or commercials where the road is closed, Ronningsbakken has to contend with car traffic. Not that this is a high-volume thoroughfare like the 405 in Los Angeles or the Long Island Expressway, but Ronningsbakken cannot take it for granted that he has the road to himself.

Despite the sharp turns, the steepness of the decline allows Ronningsbakken to reach speeds of nearly 50 miles per hour going downhill.

This text will be replaced

Ronningsbakken, 33, has built quite a following because his daredevil adventures. He has also walked a tightrope between two air balloons, balanced on a trapeze below a hot air balloon and done a handstand on a pile of chairs that were more than 3,000 feet above ground. Perhaps it should not be surprising to know that he joined the circus when he was 18.

Like us on facebook, follow us on twitter, and subscribe to our YouTube channel.

Subscribe to ThePostGame's video channel: