Who invented the BMX Bike?
BMX stands for "Bicycle Motocross" was created in the 1970's as a cheap alternative to Motocross. It gained popularity in Southern California where riders started modifying their bicycles for urban and off-road environments.
The founding father of early BMX was Scot Alexander Briethaupt in 1970 whose prime competitive years were from 1970 to 1984.
Breithaupt—who was a teenage MX racer for Yamaha—set up organizational features around his races much as later sanctioning bodies did: rulebooks, a point system, a skill level structure, a racing season, trophies and promotions of special races that were the prototype for Nationals. He produced the 1st California State Championships in 1972.
Breithaupt adapted these structures from motocross sanctioning bodies such as the AMA, CMC and AME, as would other pioneers like Ernie Alexander, [founder of the National Bicycle Association (NBA)] and George Esser [(founder of the National Bicycle League(NBL)]—both of whom, like Breithaupt, had roots in motorcycle motocross as racers or promoters. Breithaupt was the first to do it in BMX, at the age of 13.