http://www.flickr.com/photos/p_myron_h/2480606432/sizes/l/
You'll see a silver Velocity Aerohead rim. According to the builder,
the rim was stress relieved (JB's method) and tensioned to 100 - 110
kgf. On both sides of each spoke hole, the aluminum appears to be under
significant stress by the discoloration (lighter color).
Capturing this with a photograph was tough as the lighting has to be
just right to notice it even with the wheel in front of you. In the
photo, you can only see it at the left and middle holes, but this is
happening at all 32 holes.
Is this normal? Scary? Immediately dangerous? To me, it seems to
indicate that there's a bit too much tension in the spokes. But I'm
definitely among the uninitiated when it comes to wheel building -- all
of my rims up to this point have been anodized black, which might be
hiding this from me.
FWIW, the wheel has taken a good bit of abuse already and still quite
true.
Thanks,
\\paul
--
Paul M. Hobson
..:change the f to ph to reply:.


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