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WHAT IS BCD MEASUREMENT ??

Discussion in 'Technical Know How' started by BADGER.BRAD, 6 Sep 2009.

  1. BADGER.BRAD

    BADGER.BRAD Senior Member

    [FONT=&quot]I have contacted the place where I brought my bike (Edinburgh cycle co-op) with regard to fitting a second chain wheel to my Courier classic hybrid. They need to whether the cranks arm is a 4 or 5 arm (that makes sense) and asked for a BCD measurement!! What is a BCD measurement?

    Many Thanks All.

    Brad[/FONT]
  2. BentMikey

    BentMikey Rider of Seolferwulf

    Location:
    South London
    Advert
    Bolt Circle Diameter:

    http://www.sheldonbrown.com/gloss_bo-z.html
  3. BADGER.BRAD

    BADGER.BRAD Senior Member

    Thanks for the help Mikey, much appreciated.

    Brad