This is inspired by the Brands You Are Surprised Are Still around thread.

I remember ads for Zzipper fairings in the back of the old 80s bike magazines. I was surprised to see they were still in business. I've never seen one in the wild. I've only seen fairings on recumbents, not on upright bikes, let alone racing bikes.

It was well known at the time fairings weren't allowed in sanctioned races and they were strictly for training or recreational use.

But they look like they would seriously cut wind resistance. Cyclists obsess over dubious tiny theoretical advantages of aero seatposts and saddles why not fairings? We ride sub-16 pound bikes although they are forbidden by the UCI--why not forbidden fairings? Is it the Fred factor?