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04-07-19 | 05:15 PM

#2

merziac

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Joined: Oct 2015

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From: PDX

Bikes: Merz x 5 + Specialized Merz Allez x 2, Strawberry/Newlands/DiNucci/Ti x3, Gordon, Fuso/Moulton x2, Bornstein, Paisley,1958-74 Paramounts x3, 3rensho, 74 Moto TC, 73-78 Raleigh Pro's x5, Marinoni x2, 1960 Cinelli SC, 1980 Bianchi SC, PX-10 X 2

Quote:

Originally Posted by sloar

i have a 5 bolt chainring with a distance of 49.5mm, it’s not on the chart. What’s the BCD?

According to the Park CDG-2 paper chart, 50mm is 85 BCD.

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