Nomu Lab Diary

Building a Front Wheel with HED Beryllium Disc Rim

Another wheel day (and so on).
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A customer brought in a 32H rear wheel built with a Chris King R45 hub
that we built here in the shop back in the day.

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The hub is turquoise anodized,
all Comp 4-6 laced with no spoke ties,

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and the rim is a Pacenti Brevé.
This rear wheel will be rebuilt later as a front wheel
with a red anodized R45 front hub.

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Separately, for the same customer's order,
I'm building a front wheel with an HED Beryllium disc-brake-only rim
and a Chris King R45D front hub.

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The conversion from the turquoise rear hub to the red front hub
would normally be impossible to reuse spokes even with Comp lacing
since the spoke lengths are completely different,
but I discovered that they can work for the Beryllium front wheel.
That said, the Beryllium rim has greater height—meaning a smaller rim inner diameter—so
I'll need to cut some spokes, and there's no going back.
The image above shows the moment after removing the 6 inpokes on the 6-spoke side.
The turquoise hub is 32H, so one flange has 8 inpokes,
but the Beryllium is 24H, so I only need 6.

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I transferred the 6 inpokes from the 6-spoke side.
On the rear wheel, the 6-spoke 4-6 side is on the left,
but on a disc front wheel, the 6-4 side is on the right.

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I transferred the outpokes from the 6-spoke side.

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I transferred the inpokes from the 4-spoke side.
Maybe it's not worth mentioning at this point, but
the reason I'm distinguishing between inpokes and outpokes when transferring
is that the deformation just below the spoke head differs between them.

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All that's left is to take 6 outpokes from the 4-spoke side.

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The original rear wheel now has 2 inpokes and 2 outpokes remaining on each side.
I left them in a way that keeps the hub from flopping around.
Also, these 8 spokes—I haven't loosened the nipples at all.

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It's built.

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R45D hub, 24H, all Comp 6-4 reverse Italian laced.
As for spoke ties—probably won't do them.

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