Yellow Jersey has a history of Sumitomo on line, that outlines the history being spoken of here. Obvious sign that the bike is Sumitomo: Forged titanium fork crown and dropouts.
Thunder 82: I'm interested to hear more about your experience with the fork. I have a couple of them I bought used, one a Zunow, just because I'm in love with those forgings. I've never ridden them. I do have a couple of Morati forks though and the thinner tubed one flex's *alot*.
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