A couple of friends were at the Harley museum recently and took these pics.

Thought it may be of interest

Of course, you are correct China. You can hardly venture outside without seeing one of those common 1000 XA's these days.

I should have named the thread "The only horizontally opposed XS Harley" . My error. 10 out of 10 for your attention to detail.

 

 

There is some good info on these in Jerry Hatfield's book "Standard Cat American Motorcycles 1898-1981"

https://books.google.com.au/books?id=ZdXaa3a2rtEC&pg=PA182&lpg=PA182&dq=1000+XA+models&source=bl&ots=LkIEaFQHDt&sig=edgihSaYo43xFfzB-CTo6QkIpu0&hl=en&sa=X&ved=0ahUKEwjTnJPezLTQAhVJI5QKHYBeDsUQ6AEIITAB#v=onepage&q=1000%20XA%20models&f=false

Check page 182.

  Harley XA