I use Goo Gone that I spray on a cloth and then wipe the bike down with that. I have also used it with a well used, green Scotch-brite pad, very light touch, and it works well. I just did this to a 2002 Lemond Poprad that I traded for. The frame, paint and decals are in very good shape, but there was quite a bit of grime. The result was terrific. Do a small spot in a hidden area first to see what happens. I do not have a before picture, but here is the result. I also used spray wax on a cloth to polish, after the cleaning. I did the above process when I had it stripped down to bare frame, but have done it with a complete bike.