It hit me earlier this morning that the Volkscycle my Arabesque group came from did not have an Arabesque headset so I went on Ebay and picked one up to make it complete. I was just out looking over the Falcon and realized it already has a 600 Arabesque headset. I was so hung up on figuring out what it is and what size seat post it takes I hadn't even noticed the headset other than it had overspray on it.

Oh well, I have another set of Arabesque derailleurs and shifters, now I have a headset to go with them.