Winter Cycling - bike storage in the cold

I did a quick search & couldn't find anything, so:

I store all my bikes in a shed (out of the rain/wind/snow) but is not heated/insulated at all. Will the cold itself (freezing & below) mess up my bikes at all? Or should I store at least my road bike which I don't intend to ride in the wintertime inside in the basement where is almost always 50F + ? what effect does cold itself have on the gearings & tire pressure, and other things? thanks in advance,

Should be no problem in Philly. The greases will get a little thicker in cold temperatures, the tire pressure will decrease and rubber will not be quite as flexible but over all no problem. The only suggestion is if you are storing the bikes until spring make sure the wheels are hanging or you have decent pressure in your tires or you could damage the tires.
Craig

I had a few of my and my families bikes stored in an unheated shed in the backyard for a few years. The shed is well made and I live in the New York area. Well the shiny parts probably mostly aluminum got pitted. Nothing that would come off. It doesn't affect performance but cosmetically although not all that bad is visible. While I don't know what causes it my guess is condensation. Now I have an attached garage while not heated never goes below about 55-60 degrees in the winter. It has been two years and on the newer bikes I don't see any pitting. I would at least put your good road bike in the basement.

The temperature changes will cause condesation on the surface of everything. Raw metal parts may rust or corrode. You can slow this down by wrapping the bike completely in plastic. Don't leave the bottom open, moisture comes up from the ground through concrete and if there is not much air space under the floor even wood. Making the floor of the shed off the gound with air flow under it and a vapor barrier under the floor helps a lot.

The best thing is still to bring the bikes inside anyway.

I keep my bicycles outside 365 days a year through all weather conditions, I dont have any problems with them.