Evel Knievel 1972. 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. On May 10,
Adler (cars and motorcycle) Britain; however it is an urban myth that the Adler designs formed the basis of Ariel's Arrow and Leader models. Increasingly, Adler focused on the manufacture of office equipment. The company associated with Triumph to form Triumpf-Adler, and was taken over by Grundig in 1957, then later by Olivetti. Adler (cars and motorcycle) Adler was a German automobile and motorcycle manufacturer from 1900 until 1957. "Adler" is German for eagle. The Adler factory produced bicycles, typewriters, and motorcycles in addition to cars. Before World War I, the company used De Dion two- and four-cylinder engines in cars that ranged from