If they are not under the clear coat (pretty easy to see it) then I would probably start with a hair dryer to heat up the adhesive and see if that will let you get it started with a fingernail. The work some Goo Gone or Goo Off or whatever that stuff is called under the sticker and continue to peel it off. I'd be very careful with using tools on the paint, even plastic because some paints and clear coats are softer than others and you can mar the surface.
Once you get it off, give the whole frame a good wipe down and apply a coat of polish and wax.