Cycling Equipment · Public discussion

tiagra PCD/BCD

Started by Jon_H · · Last activity · 4 posts · 792 views

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Cycling Equipment
Published
22 March 2006
Last activity
22 March 2006
Original author
Jon_H
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  1. Hi there,

    what is the PCD/BCD of a shimano tiagra chainset and how do you measure it.

    cheers
    Jon_H

  2. "Jon_H" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:

    Hi there,

    what is the PCD/BCD of a shimano tiagra chainset and how do you measure
    it.

    Measuring is difficult, because the circle is imaginary. Some have pushed
    for a bolt-to-bolt distance to be specified instead.

    Anyway, Like most Shimano cranks, it's 130mm. If it's a triple, the granny
    is 74mm.

    -Hank

  3. Jon_H said:

    Hi there,

    what is the PCD/BCD of a shimano tiagra chainset and how do you measure it.

    cheers
    Jon_H

    http://sheldonbrown.com/gloss_bo-z.html#bcd

    -Nate

  4. "Llatikcuf" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:


    Jon_H said:

    Hi there,

    what is the PCD/BCD of a shimano tiagra chainset and how do you measure


    it.

    Quoted message said:
    Quoted message said:


    cheers
    Jon_H

    http://sheldonbrown.com/gloss_bo-z.html#bcd

    -Nate

    many thanks

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