Thread: Chainring BCD Question
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Old 08-18-15 | 02:14 PM
  #3  
Bair
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Joined: Feb 2015
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From: Bay Area

Bikes: 2005 Bianchi Pista Concept, S-Works Langster, Gunnar Fastlane

http://velobase.com/CatalogScans/Mot...ne_catalog.pdf

That's the 1979 motobecane catalog. My bike is a grand sport so it's a sugino 2NJX 2D crankset
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