You must read this... But does not seem odd due to reversed box on the left.
http://www.bcmtouring.com/forum/travel-automotive-gear-f15/thunderbird-touralot-t27583/
In the first place why adding such pompoms on a neat looking bike.
But if you ar planning a tour then its fine. Also be aware of the extra drag it would offer at speeds greater than 60kmph.