A friend keeps a lawn sprayer handy, fills it with warm water and hoses the bike off once a week. It's aluminum. Has worked well but disc brake and derailleur hardware suffer.
My solution was a cheap used Al hybrid, convert to 3spd nexus, and realize that after ten winters, it's time to get rid of it and start over. I rinse off in spring and put away til November.
If steel, use frame saver or boeshield. Would not use a frame I care about.
Last edited by steine13; 12-27-20 at 07:56 AM.