Thread: What is Q factor
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Old 05-23-05 | 05:40 PM
  #10  
r-dub
likes avocadoes
 
Joined: Nov 2004
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From: oakland, ca

Bikes: heh, like that info would fit here...

Originally Posted by Bikeophile
BCD = Bolt Circle Diameter. This is the distance from bolt hole to bolt hole on a Chain Ring.
mostly right. BCD is the diameter of the imaginary circle that runs through the centers of the bolt holes.
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