Here you can see my Romeo 1.0 Gold Iridium frame and also that the frame has darken over the years. I bought it second hand, IIRC about 2007, when the frames are about to be discontinued. Then when I got them were a bit stained, the guy didn't took that much care. So I wanted to know from those who refurbished the frames, what do you use to make them look like new? Cleaning cream for metals?