Thought I would post about this since it's probably not something most people think about. My bikes are covered in an unheated garage so it gets pretty cold when the temps drop. Then when we have a warmer, very humid day (like today) and the garage door is opened, that moisture condenses on everything. The bike covers only make the problem worse. This has happened a couple of times recently; I wipe off what I can reach and then use a heater and fans to dry everything out. In these conditions try to keep the garage door closed when possible, don't cover the bike and use a fan to circulate the air.