It's not fixed/ss, but most of the people I know still riding in this cold are. Please keep your eyes out for this:

"My bright yellow schwinn tandem bicycle was stolen in south philly last night. As it will be rare to see someone with a yellow vintage tandem, please let me know if you see it around, etc. Reward for the person that finds it! You will turn this frown upside down....please repost. thanks"

email any info to