Originally Posted by
bikenh
Well, my decision was easy to make when the guy at the bike shop reminded of one true problem with steel. It rusts. I'm riding in anything and everything, salt/sand, snow, sleet, freezing rain. Anything from short 10 mile hops to 200+ mile one day rides. I know what the underside of my current Cannondale looks like and when he added steel rusting into the equation...it made my decision very simple. I know I don't have the money for Ti or carbon fiber.
Salt, both from roads and sea air can cause pretty serious corrosion on aluminum. Depends on the alloy, fabrication technique, etc. Castings are particularly vulnerable.