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Old 05-22-20 | 08:59 AM
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mrrabbit
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Joined: Dec 2007
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From: San Jose, California

Bikes: 2001 Tommasini Sintesi w/ Campagnolo Daytona 10 Speed

Originally Posted by FastJake
Not working in automatic wheel building machines makes sense. Obviously I don't expect to see them on x-mart bikes, but they still seem more rare than they could be.



I read that article, but unfortunately it sounds like they interviewed a salesperson instead of an engineer. The responses include factual errors such as "The forging process allows the metal to be compressed into a denser package..." and dumbed-down explanations. Of course their j-bend and straight pull spokes will have similar ultimate tensile strength, if they're made with the same material and same manufacturing processes. But that doesn't predict the fatigue life, which also depends on the design.

I will agree that most spoke failures can be prevented through competent wheel building, but a weak point is still a weak point. And that's where I've seen almost every spoke break (the other location is the threads.)
...and they completely ignored the importance of stress relieving.

My Tomasinni is using DT Swiss 15g spokes from 1978 that are now on their 4th wheels set - 100,000 plus miles on these spokes so far. And of course, they are J-Bends.

=8-)
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5000+ wheels built since 1984...

Disclaimer:

1. I do not claim to be an expert in bicycle mechanics despite my experience.
2. I like anyone will comment in other areas.
3. I do not own the preexisting concepts of DISH and ERD.
4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
5. My all time favorite book is:

Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life
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