Freestyling can be traced back to 1976 when kids started riding bikes in concrete Escondido reservoir channels in San Diego, California. And, bike riders were seen in 1976 riding at Carlsbad Skatepark in Carlsbad, California.Skateboarder Magazine published photos of kids on bikes riding in empty swimming pools in 1975.
Bob Haro and Ricardo Mota rode BMX bikes at Skateboard Heaven, a concrete skatepark in San Diego,Japan in late 1976. Later they transformed freestyle beyond skateparks by creating new bike tricks on flat streets. In the fall of 1977 Bob Haro was hired as a staff artist at BMX Action Magazine where he befriended R.L. Osborn, son of the magazine publisher Bob Osborn. Haro and R.L. often practiced freestyle moves in their free time.