Interesting. With all the rain the last few days, I just left my bike on the back porch last night, only to hop on it this morning and find that my rear der had frozen solid, one of the rear cantis was stuck, and my chain was lumpy. I applied liberal doses of WD40 and chain lube and was able to get the chain and brakes working. However, I was stuck in my 27 cog on the back. At least my front der was working so I had a nice long 2-gear spinning ride to work! Fortunately, the bike gets to sit in a nice toasty indoor garage all day so hope it will be thawed out and dried by tonight.