Old Equipment on Modern Frame?

I'm just going to say SunTour New Winner ultra 6 freewheels.
Buy a few off Ebay for cheap and you can knit your own freewheel ratios.
1982 ish

I'm using 13-32 at the moment, on an old frame though, but the ability to swap cogs is very handy.
Work well with SunTour Cyclone derailleurs and Power Shifters.
 
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