Ages 6 to 12 years. BMX bikes have been around for a long time, but found a whole new outlet when skateboarding became popular. In addition to motocross racing, BMX riders are tearing it up on pipe ramps and in pools with their own vocabulary of tricks. This book flies children right into the middle of this rejuvenated sport with features such as: the mechanics of the trick bike; the history of the sport; freestyle stunt riding; features of modern motocross courses.