For almost 40 years, two generations of the Kreitz family in Sinking Spring have supplied sprint-car and oval-track racing parts, drawing on experience gained both in the shop and behind the wheel. Don Kreitz Sr. began building race-car frames in the 1960s, while Don Jr.—a four-time Williams Grove Speedway track champion—now helps racers choose parts based on years of technical and racing experience. The company also develops Kreitz-designed components, testing products on its own race cars before offering them to customers across the United States.