In 1992 , a group of twenty bull riders got together in a motel room in Arizona .
In 1992 , a group of twenty bull riders decided to contribute a thousand dollars each for the formation of the Professional Bull Riders ( PBR ) .
In 1992 , a group of twenty bull riders got together in a motel room in Arizona and decided to contribute a thousand dollars each for the formation of the Professional Bull Riders ( PBR ) .