in Shawnee, Oklahoma on July 17, 1976, doubling. Turned professional: 1975 First Professional win:1975 Retired: From 20" racing on May 15, 1977 at the Two Wheeler's/RC Cola Race of Champions national to devote more time to his business and promotional career and his associate editorship at Bicycle Motocross Magazine among other commitments, all of which infringed on his racing career. He then started racing a 26-inch Beach Cruiser beginning in 1979. Due largely to the lack of training time incurred because of his responsibilities of running a company and his promotions, he retired altogether from pro racing in May 1983. He himself reclassified an amateur in the ABA's 22–30 and NBL's 25–35 Cruiser Classes. It was joked in the August 1983 issue of BMX Action that they could start figuring out his age by the cruiser class he raced. He raced intermittently in these older amateur cruiser classes in between commitments with his business. He raced in Vet and Hall of Fame races in his spare time. In May 2005 it was announced that Briepthaupt, then at 49 years of age (approximately), would race for SE Bikes (see below in Factory sponsors, professional, SE Bikes). Approximate height and weight at the height of his career (1974–1978): Height: 5'10; Weight: 175 lbs. Career factory and major bike shop sponsors Note: This listing only denotes the racer's primary sponsors. At any given time a racer could have numerous co-sponsors. Primary sponsorships can be verified by BMX press coverage and sponsor's advertisements at the time in question. When possible exact dates are given. Amateur Matthews Motocross Products (a division of Leisure Recreation Vehicles (LRV)):* 1973 – early 1974 Matthews Motocross/Yamaha International:* Early 1974 – December 1974 He consulted with Yamaha to create and refine their famous Moto-bike, a BMX bicycle that was designed to mimic the look and feel of a motocross motorcycle, including having shock absorbers built into its frame and fork. It is a famous milestone in BMX with early BMX stars like David Clinton winning the first BMX titles on it but it with its energy robbing shock absorbers was not the future that the BMX bicycle would take. Dan Gurney All American BMX Bicycles/Bell Helmets:* January 1975– FMF (Flying Machine Factory):* Early 1976 – December 1976 (Partner w/Tony Rogers & Donnie Emler) *He was employed with these companies as consultant, team manager official tester as well as a racer.