On January 7 and 8, 1971, Knievel set the record by selling over 100,000 tickets to back-to-back performances at the Houston Astrodome. On February 28, he set a new world record by jumping 19 cars with his Harley-Davidson XR-750 at the Ontario Motor Speedway in Ontario, California. The 19-car jump was filmed for the movie "Evel Knievel." Knievel held the record for 27 years until Bubba Blackwell jumped 20 cars in 1998 with an XR-750. In 2015, Doug Danger surpassed that number with 22 cars, accomplishing this feat on Evel Knievel's actual vintage 1972 Harley-Davidson XR-750.