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Building disc brake wheels - tips?

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Old 06-02-12, 12:23 PM
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Reynolds 
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Building disc brake wheels - tips?

I've built quite a few wheels for me and friends, and they turned out good. However, those were always traditional road or MTB wheels, and now a friend asks me to build disc brake wheels for his new 29". Is there any difference, tips, etc. to building traditional wheels? I mean leading/trailing spokes on the inside or outside, things like that. Hubs are Sram X9 and rims All Mountain, lacing 32 x3.
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Old 06-02-12, 01:58 PM
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Originally Posted by Reynolds
I've built quite a few wheels for me and friends, and they turned out good. However, those were always traditional road or MTB wheels, and now a friend asks me to build disc brake wheels for his new 29". Is there any difference, tips, etc. to building traditional wheels? I mean leading/trailing spokes on the inside or outside, things like that. Hubs are Sram X9 and rims All Mountain, lacing 32 x3.
Not too much different. Front rotor side higher tension to maintain dish. Can use either disk or non-disk rims but hub has to be disk ready. Otherwise pretty much the same. Happy building.
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Old 06-02-12, 02:25 PM
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you might get around L 100:90 R tension due to the dishing, but that's about it.
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Old 06-02-12, 05:16 PM
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A wheelbuilder friend of mine who works at SRAM R&D says, the main reason to build wheels, sticking to the conventional wisdom of leading-trailing-inside-outside spoke placement, is to avoid unnecessary comments from the peanut gallery. Other than that it doesn't make a difference.
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