Forgotten Futurist Bold  Sugerido por donshottype 

Higher definition image of the logo


Standard fonts do not have letters where the top or bottom is expanded or contracted to fit an arc as used for _MOTOR CYCLES_ in the logo.
After adjusting the letters to make them the same height a result could look like



or a similar result a little taller or shorter.
This is a good match for Forgotten Futurist Bold, currently offered at no charge at Myfonts.

Forgotten Futurist Bold is also offered here at Dafont
http://www.dafont.com/forgotten-futurist.font?text=MOTOR+CYCLES&psize=l