Originally Posted by
genejockey
I think the Circuit was the top of Schwinn's Lightweight, non-Paramount models.
AFAIK, they were made for only about 5 or so years, from maybe 1985-1989. 1988 and 1989 both got Shimano's Sante groupset. They were made with Columbus SP or SL depending on size, and at least the 88 and 89 had a Tange aero fork and seatstays, and Cinelli bar and stem. The for, and the seat and chainstays were chromed.
Impressive.
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