In 1973 to 1976 model years, different variations of multicolored stripes adorned gas tanks of nearly all models. The first year was a sequence of red, white and blue horizontal parallel lines, and paired with overall marketing of the now-famous Number 1 logo and the tagline "The Great American Freedom Machines." Years 1974 to 76 changed things up, common in motorcycle styling. We can check for marketing examples in Archives.