What gearing is best?

Discussion in 'Cycling Equipment' started by Blimp, Jan 3, 2003.

  1. mnetherc79

    mnetherc79 New Member

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    My fastest ever sprint was 63km/h after a leadout (dead flat no wind), with my biggest gear being a 52/13 (Shimano Tiagra running gear), my legs were spinning pretty fast from memory.<br /><br />Is there a way I can calculate my cadence in RPM in this gearing at that speed?
     


  2. maarten

    maarten New Member

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    mnetherc79

    52/13*2.136*60*cadence =63000

    63000/52*13/2.136/60=cadence

    so 123 rpm is the answer
    I used 2.136 as reference this is the mesure for a 28inch wheel(standard orad racing wheel) with a 23mm tire if you have another wheelsize you have to substitute 2.136 with the correct mesurment for your wheel
     
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