Originally Posted by
Psimet2001
So low tension CAN cause premature spoke fatigue failure but all spokes will eventually fail from fatigue even when tensioned appropriately.
Here's the big kicker though: with modern alloy rims that allow us to reach higher tensions than in the past, better alloys and processes and quality control on the spoke wires and production we quite simply live in an era where if you actually start reaching the natural end of fatigue life for spokes and the wheel was built properly then you've really gotten your money's worth as you've ridden it way beyond where most people walk away from the wheelset and want something new.
So IOW, fatigue failures will be caused by low tension.
Didn't Jobst Brandt get 300,00km out of 72 crappy old 15/16g SS spokes from BITD, wearing out the rims three times? Elastic spokes FTW.
Says to me, fatigue failures are going to be caused by low tension. Or maybe manufacturing defect, or poorly done holes or seating in rim or hub together with wheelbuilding fail. Or maybe even wheel design fail. But usually, almost certainly, not enough tension.