The factory rear tire is a 180/65-16 on my 2010 FLHTP. Would there be a problem with switching to a 180/60-16. Has anyone switched to a lower profile tire? According to a tire calculator I would only lower the bike 3/8 of an inch. The bike is lowered 2" in the rear and 1" in the front. Also what is the best brand of tire for ride quality? Thank you.