When you want to do much with your bike than just plain old riding it on a road, then you need special bicycles which are often called BMX bicycles and seem to be hugely popular among teenagers all over the world. These bikes are one of the most popular off road bikes which are specifically used for adventurous sports and stunts and involve rough riding on equally rough surfaces. In fact, there is a huge crowd in the world who watches BMX bikes stunts/games fervently.