BMX, which stands for bicycle motocross, are specially designed racing bikes which are used for stunt riding and also for street racing. BMX racing is an extreme sport which originated in the United States of America sometime in the 1970’s. There are a whole slew of BMX bikes which are specially designed for freestyle riding, street racing and for dirt jumping. Some popular models of BMX bikes include the freestyle bike, the Vert BMX, Street BMX, Park BMX and Flatland BMX, to name a few. The most expensive BMX bike in the world will set you back by about a thousand dollars. To know more about the most expensive production BMX bikes in the world, click on the link that is mentioned below.