Kind of interesting.
they list the XS650 74-79 standard
http://cycle-ergo.com/?fbclid=IwAR0VS8MYkJbpZKZbo2oIw9DgiG5E5fzCtsLrjTl1nI77WUgKse2ssFHxArM
Link has an XS650 and a BMW I selected filled in, easy to change/make your selections.
they list the XS650 74-79 standard
http://cycle-ergo.com/?fbclid=IwAR0VS8MYkJbpZKZbo2oIw9DgiG5E5fzCtsLrjTl1nI77WUgKse2ssFHxArM
Link has an XS650 and a BMW I selected filled in, easy to change/make your selections.