GS Models
The GS has been available with a range of different engines, including single-cylinder, twin-cylinder water-cooled and twin-cylinder air- ("Airheads") and air/oil-cooled ("Oilheads" and "Hexheads").
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“Today it is not the classroom nor the classics which are the repositories of models of eloquence, but the ad agencies.”
—Marshall McLuhan (1911–1980)