I have a set of Open Pros on Centaur hubs, DT 14-15-14 spokes, brass nipples. On the rear drive side, spoke tension is a pretty even 100 KgF (measured with a Park tensiometer) all the way round except one spoke which has to be backed off to around 60 KgF to avoid a fairly dramatc flat spot. I've stress-relieved as per the recommended squeeze in pairs method.
I got these wheels second hand, so I can't attest as to the original condition of the rim. I'm reasonably sure they have been lightly used and not crashed.
Is this unusual, and will the one loose spoke be likely to cause problems in the long run? Will swapping to a different length spoke in that one spot enable me to bring it up to even tension?
Thanks in advance
Mario ====================================================================== Mario Mirabile Melbourne, Australia mariomATconnexusDOTnetDOTau ======================================================================
mario-<< all the way round except one spoke which has to be backed off to around 60 KgF to avoid a fairly dramatc flat spot. I've stress-relieved as per the recommended squeeze in pairs method. >><BR><BR>
I would say the rim is 'dented' or pushed in at that spot. I would recommend getting the tension as close to the rest of the wheel or loosening or broken spokes at that spot is likely.
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I have a set of Open Pros on Centaur hubs, DT 14-15-14 spokes, brass nipples. On the rear drive side, spoke tension is a pretty even 100 KgF (measured with a Park tensiometer) all the way round except one spoke which has to be backed off to around 60 KgF to avoid a fairly dramatc flat spot.
Is that spoke at or near the rim joint? It's common to have some weirdness there.
"Mario Mirabile" wrote🙁clip) Will swapping to a different length spoke in that one spot enable me to bring it up to even tension? ^^^^^^^^^^^^^^^ No. If you change the spoke length, assuming it still threads into the nipple, will simply result in a different length of engagement. This could cause other problems, but it won't solve this one. ==================================================================
mario-<< all the way round except one spoke which has to be backed off to around 60 KgF to avoid a fairly dramatc flat spot. I've stress-relieved as per the recommended squeeze in pairs method. >><BR><BR>
I would say the rim is 'dented' or pushed in at that spot. I would recommend getting the tension as close to the rest of the wheel or loosening or broken spokes at that spot is likely.
But just make sure it isn't a thick single gauge spoke in a wheel built with DB spokes /Marten
