Nomu Lab Diary

I Enlarged the Through-Axle Hub Bore by 3mm

A customer dropped off an Iron Cross front wheel with us.
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We'd just built it up a few days ago with RS-770 front and rear hubs, but

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The customer told me: "I got home and tried to install it, but the fork's through-axle wasn't 12mm—it was 15mm!"
AHHHHHHHHHHHHHHH NOOOOOOO

Okay, calm down. We can still work this out.
Lucky for us, this Iron Cross is 32H. Not 28H.
Among Shimano MTB hubs, only the XRTR (list price ¥17,624 ex-tax) comes in 28H,
but the XT (¥5,824 ex-tax) is available in 32H,
so we can rebuild without breaking the bank.

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The semi-comp CX-RAY side is laced with a connection, so I can't reuse the spokes.

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I pulled out the final two crossing spokes on the comp side

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and transferred them to the XT hub, keeping the inpoke and outpoke relationship exactly the same.

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I wanted a nice shot of both hubs side by side,
but that turned out to be impossible, so I ended up disassembling the CX-RAY side a bit too.

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Transferring the comp spokes over.

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The comp spokes have been transferred.

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I filled in a fresh CX-RAY and built it up.
I'll do the lacing connection later.
It doesn't really matter at this point since I'm already satisfying the condition on another build,
but this one doesn't meet the "Today's Wheel (etc.)" criteria either way.

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15mm diameter.

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During the hub transfer,
I didn't remove the tubeless valve or rim tape.
I left them as-is.
Peeling off the rim tape would've saved work time,
and honestly, with comp spokes, cutting and tossing it would probably pay for itself
in labor savings,
but I chose the more involved method
because the visual of transferring the hub makes for better article value.
Though to be honest, I'm not charging labor for this rebuild anyway.

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