Well, that was quick. Your Serotta is beautiful. You've made your decision, but I'll just throw a couple of comments into the thread. I don't have any ownership or riding experience with Serotta Ti, but I'm fully into Litespeed 1994 and later. The Palmares was produced in 2000 and 2001 only and had a 1 1/8" head tube both years. I've owned a 2000 Palmares now for 5 years. It's light, fast, and comfortable over long distances.
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WTB: Slingshot bicycle promotional documents (catalog, pamphlets, etc).
WTB: American Cycling May, Jul, Aug, Oct, 1966.
WTB: Bicycle Guide issues 1984 (any); Dec 1985; Apr 1994; May, Jun 1996; May 1997.
WTB: bicyclist May, Dec 1997: Jun-Dec 1998.
WTB: Bike World issue Jun 1974.
WTB: Litespeed head badge (circa 2000)