Nomu Lab Diary

Rebuilt the PowerTap Hub Rear Wheel

Another wheel day (and so on).
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A customer dropped off a rear wheel built with a PowerTap hub and
an Open Pro rim.

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One spoke is missing, but rather than just repairing it,
the customer wanted a complete spoke replacement rebuild.

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Before the rebuild, it was built with mystery plain spokes, 32H, four-cross lacing pattern.

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Disassembled the wheel and cleaned up the hub.

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Got it built up.

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PowerTap "Pro" hub, 32H, black half-comp spokes, four-cross Italian lacing pattern, wired.

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The matching front wheel is also here for inspection.

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HB-9000, 32H, mystery #14 plain spokes, outpoke radial lacing.

Dead center, virtually no lateral or radial runout.
I only had to turn the nipples slightly in just two spots.
Actually, that might not have even been necessary—it barely had any runout at all.
The only other thing I did was slip a cloth in and wipe down the hub.

If I had to nitpick one thing—and it doesn't affect performance—
the alignment between the Dura-Ace marking and the valve hole was off.
It looks cleanest when the Dura-Ace marking lines up with the valve hole when you peek through it (I'm in this camp),
or alternatively aligned 180° opposite (which Shimano wheels use).

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As for the spokes used in both wheels,
there was a stamp that I thought might mean Abutomatt Kalashnikova,
but I couldn't figure out which brand they actually were.

※They don't mean that.

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