Donny is the Winner of the 2012 International Book Awards.
Donny established and has operated Heavy Duty Cycles in Toronto, Canada, since 1974; his monthly column “Techline” has appeared in American Iron Magazine since 1992.
Instructed privately by Harley-Davidson engineers, Donny has taught mechanics, designed tech-school curricula, and authored student-licensing examinations.
Donny has ridden Flathead, Knucklehead, Panhead, Shovelhead, Evolution, and Twin Cam Harley-Davidsons for over 40 years across North America, Europe, segments of South America and South Africa. He has learned much from being a mechanic at Heavy Duty as well as doing all his own roadside repairs.
A Toronto resident, Petersen now writes his 12-volume technical encyclopedia. His other hobbies include riding, mountain trekking, scuba diving, and boxing.