About a month ago I called Zipp because I could not get a straight answer regarding the wheel you are looking for. The answer at the time was, they don't exist yet, or more specifically Rappstar has the only one and there have been delays in the manufacture. Don't know if they exist at this time but I would doubt you will find one on the used market right now. Tubular only.

there have been quite a few on ebay lately.

BUMP