Wild Bill Gelbke
American motorcycle designer
About Wild Bill Gelbke
Lived 1938 – 1978 (aged 39–40). Wild Bill Gelbke was an American military flight engineer, aerospace engineer and motorcycle design.
William "Wild Bill" Gelbke (1936–1978, born in Green Bay, Wisconsin) was an American engineer and motorcycle designer. He is noted for having designed and constructed large motorcycles powered by automobile engines, particularly the Roadog and the Auto Four, the latter a motorcycle intended for mass production. Roadog was intended to be featured on an episode of The History Channel's Modern Marvels, however the bit was cut from the episode.
Gelbke worked for McDonnell Douglas and other US Government contractors during the 1960s, most notably on guidance systems for surface to air missiles, however he quit when he was disallowed from viewing the complete plans for the missiles themselves.
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Important facts
Contemporaries
People whose lives overlapped Wild Bill Gelbke's
Frequently asked questions
Who was Wild Bill Gelbke?
American motorcycle designer
When was Wild Bill Gelbke born?
Wild Bill Gelbke was born in 1938 in Green Bay.
When did Wild Bill Gelbke die?
Wild Bill Gelbke died on 17 November 1978 in Green Bay.
What was Wild Bill Gelbke's occupation?
Wild Bill Gelbke was a military flight engineer, aerospace engineer and motorcycle design.
What nationality was Wild Bill Gelbke?
Wild Bill Gelbke was American.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Wild Bill Gelbke. https://biography.guide/wild-bill-gelbke/
MLA: "Wild Bill Gelbke." Biography.guide, https://biography.guide/wild-bill-gelbke/.
Chicago: "Wild Bill Gelbke." Biography.guide. https://biography.guide/wild-bill-gelbke/.
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