In 1973 I saw a 19lb. steel-framed bike. Custom framebuilder A D Stump rode his personal black chrome bike over to our shop (original Bikecology on Wilshire Bl. in Santa Monica). It didn't hurt that he was a little guy, even by my standards, who rode about a 52cm frame. During that era all of the mid-to-high end production bikes were coming in at about 22 to 24 lbs.
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"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069