Arthur Constantine
Revision as of 19:02, 23 August 2010 by Huntersthompson (talk | contribs) (Created page with "An assistant engineer at Harley-Davidson from 1923. He was a graduate engineer fresh from Buick. He resigned the following year, after Bill Harley and [[Arthur Davidson]...")
An assistant engineer at Harley-Davidson from 1923. He was a graduate engineer fresh from Buick. He resigned the following year, after Bill Harley and Arthur Davidson rejected a 45ci (750cc) side-valve prototype he had built. Constantine went to Excelsior, where he produced the successful Super X. Harley-Davidson's own 45ci twin was brought out in direct response.