Any one ever refinish shifters and a crankset? I just scored a frame from a velo swap for $75 and i have some old parts i want to put on it for now. I have some old 9sp ultegra shifters and a crankset i want to use but there kind of a mess. I was thinking about just sanding them down and panting them black. Whats the best thing to use sand paper or steel wool?