Fifty years ago a friend had what he said was a "Harley 61".  I thought it was the coolest bike ever, and I still do.   His dad had a "74".  These were bright, knowledgeable people.
The "61" was a dark metalic (?) green "dresser", a tad smaller overall in size than the "74".     Did anyone every hear of a stock sixty one cubic inch Harley?
My next question is:   What kind of fuel mileage do people get with their big Harleys on a trip at highway speeds?   My old Gold Wing got 30 mpg on the road.  I was not impressed.
Thanks!