Wheelbuilding / Wheel Building / Wheel build help

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hippy in reply to @thecycleclinic

STW fight between Hope and Shimmy Shimmy Yeah:
http://singletrackworld.com/forum/topic/hubs-hubs-hubs-best-choice-for-function-amp-value-xt-vs-pro-ii-vs-xtr

Other than an cost an extra £100 what do XTR do over XT?

"£100 buys a lot of grease, bearings and above all, BEER. I'd go for the XTs."

Do Shimano do any sealed-bearing disc hubs?

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svenhöek in reply to @hippy

xtr:
Ball bearing races are ground with Cubic Boron Nitride
titanium freehub

so weight-weenie things...

EDIT: XT also has Cubic Boron Nitride ground races, but XTR has some special thing done to the cups as well. So (theoretical) faster rolling...

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hippy in reply to @svenhöek

Any idea how tough the ti freehub is?

What's the final weight difference?

I think XT is most likely. I'm already at £2k without wheels or powermeter on this build.

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