Yes! There's a s1ck youtube video of a hipster bombing down a hill in sanfrancisco, and he applies his kierin brake and his fork explodes! Check it out! While you are doing that my original question might be answered!
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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"