Bicycling can be a fun, relaxing way to spend an afternoon.

It can also be a dangerous, extreme sport for professional mountain bikers.

Watch and listen as two commentators can't contain themselves as Great Britain's Danny Hart makes an amazing run at the 2011 Downhill Mountain Bike World Championships.

There no doubt that these announcers are passionate about downhill mountain bike racing. They have the hoarse voices to prove it. Danny Hart puts up a remarkable time, but the commentators steal the show.

Enjoy the video, but don't try this at home.

More From 100.5 FM The River