Old 05-19-19, 10:38 AM
  #8  
Aubergine 
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Join Date: Nov 2015
Location: Seattle and Reims
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Bikes: Peugeot: AO-8 1973, PA-10 1971, PR-10 1973, Sante 1988; Masi Gran Criterium 1975, Stevenson Tourer 1980, Stevenson Criterium 1981, Schwinn Paramount 1972, Rodriguez 2006, Gitane Federal ~1975, Holdsworth Pro, Follis 172 ~1973, Bianchi '62

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Originally Posted by delbiker1
I am not sure, and some one will correct if I am wrong, but I believe going from a 3 FD to a 2 FD the chain line will have to be corrected. That would be when installing the BB. Please anyone, right or wrong?
It would be a good practice to check, certainly. However, if the new double crank and bottom bracket are designed to go together, it’s pretty likely that the chainline will be good as installed.
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