Quote:
Originally Posted by dustyrider
Hmm. Does the frame have any engraved lettering? Like an “S” on the brake bridge or the bottom bracket lug. Those external cable stops on the top tube should also be a big clue. The 58L is supposed to mean a 58cm top tube instead 57.5cm. I also thought csi all started with “cs” not just a “c”. Do any of the tubes appear butted? Thicker at one end than the middle. I’m guessing the head tube lug and seat tube will be the give away.
I don’t know anything about that fork. Folks really like those 1” threaded dura ace headsets so you’ve got some money to play around with if you decide to remove it and sell it.
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I see an engraved “S” on the rear brake stay. I wonder if when they were still using “1/2 lug” assembly they used their on-hand stock of older lugs - perhaps still stamped “C” - before they began sourcing CSI-specific “full” lugs? The filet job on these is stunning though. Yes, the seat and down tubes (at least) are much fatter at the bottom bracket than on the opposite ends.