I use my least favorite steel frame for foul weather (Moser with Columbus tre-tubi). It has just under 15,000 miles of snow, salt and rain. I have full fenders on it. The frame still looks good, but I've had a set of aluminum rims rot out. Also, I destroyed a bottom bracket and a couple of sets of sealed-bearing RD pulleys.
Let me add: When I put my garden hose away at the first freeze, the bike doesn't get washed down until the spring thaw.
Last edited by gearbasher; 12-01-18 at 11:06 PM.