I have an old spray can of "Oops" adhesive remover. I spray it on a towel, lay the towel on the residue for a minute or two and then wipe away. Also good for getting a little buzz if you use it in the garage with the door down.
I've heard of Goo Gone, but have never used it. Just got my new bike in May & still have a couple of those WARNING stickers on some chrome, that I want to take off. What takes off the leftover sticker gummy residue?
Soak it down with WD-40. Won't hurt anything on the bike and washes off with soap and water afterwards.