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Old 08-30-21 | 06:22 PM
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noobinsf
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From: Oakland, CA

Bikes: '82 Univega Competizione, '72 Motobecane Grand Record, '83 Mercian KOM Touring, '85 Univega Alpina Uno, '76 Eisentraut Limited

Hilary Stone's website has some images that appear to illustrate what you describe, though there is no explanation of the different tooth shapes, so hopefully someone can shed some light: Hilary Stone Chainrings 122mm BCD
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