Mountain biking has also become an issue on the state level.

Mountain biking has been growing as a sport since the 1970s.

"Mountain biking is probably better preparation for this race than running," she said.

Mountain biking is not allowed on the trails in the summer.

Mountain biking became a popular form of recreation in the late 1980s.

That extra week of mountain biking was so much more important than people realize.

Mountain biking is also allowed for some sections of the trail.

But the great advantage of mountain biking is that you can get off the bike.

In the past few years, mountain biking has captivated Americans of every age.

Mountain biking is usually marketed as a kind of blood sport.