My '95 Cannondale hybrid has 17k Minnesota winter miles on it. The salt does cause "bubbly" corrosion on the bare aluminum, which spreads under the surrounding paint. I just scrape it off with a screw driver, sand it lightly, and paint over with a metal primer and matching paint (black). More of an issue is that the rims corrode a bit around the stem hole, making it impossible to remove the tube without ruining it if I get lazy and don't periodically clean out the hole before it gets to that point.