Nomu Lab Wheel

Rim Replacement and Rebuild on a Lightning Alpine Wheelset

Another wheel day (et cetera).
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A customer brought in a wheelset built with an Alpine-brand rim—actually a wheel I'd rebuilt for them in the past.
Originally it came with a Kinlin hub, pretty much equivalent to American Classic,
but the front hub bearings kept dying quickly,
and the rear hub had narrow flanges with no lateral stiffness
(partly a lacing issue too), so it was touching the brake shoes.
I'd already swapped both out for Novatec 291/482 hubs in a previous rebuild.

This time it was a spoke breakage repair, but the rim's brake zone was pretty worn,
so we decided to rebuild it with a Nomu Lab Wheel No. 5 rim.
When swapping between two radial-laced rims, the new setup requires spokes about 2mm longer,
so spoke reuse isn't possible.
In the reverse scenario—if the old CX-RAY spokes were uncut—reuse would be fine.

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Built it up.

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Since we were going to get new spokes anyway, I consulted with the customer and went with tangent lacing.
CX-RAY, four-cross Italian pattern.
The customer basically wanted silver aluminum nipples,

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but the two nipples flanking the valve hole in blue aluminum,
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and the two nipples flanking the rim seam on the opposite side in gold aluminum. That's what they wanted, so that's what I did.

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Next, the rear wheel.

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All CX-RAY in half-comp, with red aluminum nipples converted to match the front wheel pattern.

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Built it up.

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The freebody and hub shell look unusually clean compared to before the rebuild—not just from washing, but because I replaced the left and right bearings on both hubs.
Only the dual bearings inside the freebody survived intact; everything else was grinding away.

If we'd done the front wheel rebuild in radial lacing, I could've reused 12 of the old spokes from the drive-side and used them among the 20 front spokes—I'd offered that to the customer beforehand.
But they preferred a fresh swap, so those 12 drive-side spokes ended up scrapped.

If doing an outpoke radial build, reusing 6 of the 12 old inpoke spokes as outpokes isn't really a great idea either.

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The nipple setup is the same as the front wheel.

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