ESP racing was owned by Dugan Finnell out of Texas. He owned and operated cow town bmx in Fortworth. Dugan worked for the ABA announcing many of the nationals. It was Dugan's voice on the gate starting system when it first became computer automated. Brad Finnell (Dugans son) was one of their best riders; winning the grands several times. Zack Robuck rode for ESP just before he became National #1 rider in the points race aound 1990. Dugan was the coolest guy in bmx at the time.
ESP stems is another thing completely..the stems are out of washington made by flying W..
Their ESP is Enhat speed products