The chain guard / fender on my bike was looking crappy, I've tried all sorts of automotive stuff on it. Seems like Armor All made it look decent, but it didn't last very long. The boss at my favorite bicycle store said he uses nothing but Lemon Pledge to keep his bicycles looking fresh. So I tried some on the Honda. I did it a couple of weeks ago, and it still looks new. It is also the best thing ever for a bicycle.
"Gentlemen. You can't fight in here. This is the War Room." - President Merkin Muffley