I bought this stuff called RainCoat at Cycle Gear, it comes in a little packet for $.99, it is a wax that you put on the shield that repels water.
http://www.cyclegear.com/spgm.cfm?L1=&L ... RCPCH100_G
However since I got it and applied it, there has been no rain.
So I don't know how well it works. Or maybe it is repelling the rain? :twisted: