Re: Is there any risk in keeping your bike outside in extreme cold?
I learned about the antifreeze in a lock trick from my father-in-law. He used to do it with a padlock on a driveway gate and a crawlspace door. I've seen it work for years. In the spring he cleaned the locks with solvent then next winter filled them with antifreeze again.
I also learned from a locksmith that WD-40 was the all time worse thing to spray in any kind of lock. He said that he loved it when people did that. It was easy money for him to spray solvent in and clean out the lock that was gummed up from WD and the dirt it holds in the tumblers, cylinders and pins. He suggested dry silicone spray but that won't keep them from freezing if they get moisture in them.
Age and Treachery Will Always Triumph
Over Youth and Skill & "Charlie Don't Ride"