Spoke Tension Calculator

I use this spreadsheet in the last step of a wheel build.  It converts spoke tension measurements from a Park Spoke Tension Meter into kilograms force (Kgf) and checks for tensions that are outside specified limits in absolute tension and variance in tension between spokes.  The tension limits can be edited.  The defaults are limits suggestion in the book The Art of Wheelbuilding by Gerd Schraner.  In my wheels (all 406), I make a few passes with the tension meter and spoke wrench to bring all spokes within the absolute tension limits and minimize the variance between spokes as much as possible.   But I give up long before all the variance numbers are within limits (there’s still plenty of red in the spreadsheet).  It’s possible that it’s easier to achieve these tolerances on a bigger wheel but I’ve never tried it.  Or that my calculations are off.  But I can say that I’ve never had a problem with a wheel built this way (I’ve re-trued maybe twice to correct very minor wobbles) so I’ve learned not to sweat it.

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One thought on “Spoke Tension Calculator

  1. Pingback: Wheelbuilding | A Seasonal Commute

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