Extreme Biking is an exciting and invigorating extreme sport. People don't consider biking as an extreme sport, that's because those people think of biking as riding on pavement. These are two extreme styles of biking: mountain biking and dirt biking.
Mountain biking involves being able to do tricks and requires a serious amount of practice. Not only that, but you need to be able to maneuver your bike over very rough, rocky, and steep terrain, like a mountain.
Dirt biking is very different because the bikes are motorized similar to motorcycles whereas in mountain biking the bikes are manually powered by use of pedals. Dirt biking is also usually a race where numerous man-made bumps and tunnels are put on a track.