Saw a blue ~70s varsity yesterday at the thrift store, they must of caught on to the recent retro-bike boom. The price tag was $79.95!
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1989 Schwinn Paramount OS
1980 Mclean/Silk Hope Sport Touring
1983 Bianchi pista
1976 Fuji Feather track
1979 raleigh track
"I've consulted my sources and I'm pretty sure your derailleur does not exist"