Well after nine days I got my 1 1/8" to 1" head set adapter for my GT2A Skyhawk frame. I wanted to use a threaded head set for a more vintage look. The fork will arrive tomorrow or Wed but my new problem is the adapter I got from bicycle design will not work. The adapter cup falls through my forward tube and does not fit. This is a 1 1/8" headset bike as the included threadless headset is 1 1/8". So now I have to figure out what to do to correct this. I don't know why they don't offer options they offer a drop out option of 135mm or 150mm why not a head set option 1" or 1 1/8". Anyways I will be lurking on here to see if anyone else on here had this problem and see their fixes.