how do I know what size crank is on my bike

Discussion in 'Cycling Equipment' started by speedy_gt, Sep 27, 2005.

  1. speedy_gt

    speedy_gt New Member

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    I have a bent crank and need to replace it. I will more than likely buy off of e-bay, but I need to know what size crank to buy. How do I check the size?
     
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  2. dfvcad

    dfvcad New Member

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    Look on the inside of the crank arm with the chainring and you should see an engraved number that can range from 170 to 175.
     
  3. 10timesbetter

    10timesbetter New Member

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    or measure from the center of the pedal hole to the middle of the spindle hole in mm.
     
  4. sansabar

    sansabar New Member

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    If you can't find the engraved number you can measure (in millimeters) the crank arm from the center of the pedal to the center of the bottom bracket.
     
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