Greetings,does anyone know where to get a rondel,BMW style,about 63 mm (2 1/2") in dia. I bought some about 5 yrs. ago from a BMW car dealer.Appeared to be thin sheet alum? About $18.00 if I recall.I stopped at the same dealer today, all they claimed to have was a heavier(thicker) one a bit larger. About $50.00 each. !!! WOW !!. They didn't seem too keen on helping me and the bike dealer has nothing.Same help there.(none). I need two for my tank, and one for the tailpiece.1982 r65ls. Thanks in advance.