I am an avid bicycle racer and I have a suggestion. I use a product called white lightning. It gets applied to a CLEAN chain. then when it dries, it doesn't attract dirt and grip. Excellent lubrication and preservation properties. After all, nobody is more critical to friction than the guy bushing the big ring on a long pull from the peloton.
BTW
Tour De France
GO LANCE ARMSTRONG (Texas)!!!!!!!!!! He put two minutes on his key rival Ullrich (Germany) today.
Rogue