The Simplex pages in the 1950 Fonteyn catalogue show a Simplex branded freewheel, but I haven't figured out how to tell if they're PC. The freewheels it lists are "Eureka" I don't know if that's the brand or the Simplex model name, it's hard to tell in the older catalogues.
I've been trying to figure this one out myself if you hadn't noticed. I keep thinking something like a Suntour Perfect would be the best option and screw the PC.
The Simplex pages in the 1950 Fonteyn catalogue show a Simplex branded freewheel, but I haven't figured out how to tell if they're PC. The freewheels it lists are "Eureka" I don't know if that's the brand or the Simplex model name, it's hard to tell in the older catalogues.
Ones like this come up https://www.ebay.com/itm/NOS-1970s-SIMPLEX-VINTAGE-BICYCLE-FREEWHEEL-BODY/293534527560?hash=item4458057048:g:A3kAAOSwvuxehybJ, I've seen described as 1950s-1970s so who knows, but they look fitting.
Moyne is another option, can be reasonable can be $$ depending on who is selling and they also look great imo https://www.ebay.com/itm/J-Moyne-4-Speed-Freewheel-1940s-50s-for-vintage-531-Campag-Simplex/184699475325
[For a 16-22 spread though kinda think just go for a 16 fixed!]
I've been trying to figure this one out myself if you hadn't noticed. I keep thinking something like a Suntour Perfect would be the best option and screw the PC.
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