mrg
I'm the Wiz, and nobody beats me!
I have had a couple of Schwinn's with optional factory installed SA 3 spd drum on S2's. As for balloon tire 3 spd/caliper brake at least 3 company's started producing them in 53 ( 54 model ? ) Schwinn, Colson & AMF-Roadmaster, I started this thread a few years ago explanes a little about Schwinn's 2 yr experiment with a S2 3 spd. ( and adding calipes brackets ) to complete with the middleweights. https://thecabe.com/forum/threads/prototype-jaguar.70602/
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