Sunday 22 November 2009 | Personalise | Help

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The Pinkster

Posted: 06/10/06 12:50:39 39


Message:	"Black spokes are more prone to fatigue failure than silver ones... If I was building wheels for a living I also wouldn't use black spokes (Or would warn anyone who wants them that the wheel isn't likely to be as reliable as a silver spoked wheel). The reason for this seems to be that the coating used to make the spoeks black has a vastly different stiffness to the metal under it, leading to stress building up between the coating and the spoke surface as the wheel is stress cycled, bringing on fatigue failure much earlier then when no coating is present." I've always been lead to believe this is a myth and is actually total bollocks unless the stresses you're putting the spoke under are far greater than anything a wheel build would do to it. I asked my bro-in-law about it and would tend tro believe what he says as he's a metalurgist.
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