Breithaupt was a BMX pioneer perhaps the inventor of its modern infrastructure. He first organized what was called Pedal-Cross at the time on November, 14th. 1970, and established a track in a vacant lot in Long Beach, California.
Many consider him, in some ways, a founder of "Old School BMX"—an era from roughly 1969 to 1987 or 1988, from its very beginnings to just after its first major slump in popularity from 1985 to 1988. Racing started to rise in participation again around 1988–89 and is considered the start of Mid School BMX, roughly 1988–2000. He was born in Long Beach, California.