Nomu Lab Wheel

Built the front wheel for Nomu Lab Wheel No. 5

Another day of wheel building (and so on).
DSC04177msn.jpg
Built the front wheel for Nomu Lab Wheel No. 5.

DSC04178msn.jpg
Black hub 20H, black CX-RAY outpoke radial lacing.

DSC04164msn.jpg
Now, on a different matter. A customer brought in an Aksium Race wheel.
The rim's bead hook had some deformation from buckling,
and aside from that there was no rim runout or anything,
but since it's showing up in the brake feel, we're doing a rim replacement.
(I tried everything to fix the bead hook deformation, but couldn't make it work)

This rim has an internal diameter close to the XR200,
so we can do a simple rim transfer.
The spoke has a long plain section on the threaded end,
so we can trim it shorter if needed.
So it's okay even if the new rim has a slightly smaller internal diameter.

DSC04165msn.jpg
Disassembled it.
I checked the rim on a glass surface plate—it's barely warped at all.
You can see a spoke passing through a nipple in the photo,
and that nipple is a DT 12mm.

DSC04166msn.jpg
The spoke has a long threaded section.
This is designed to match specialized super-long brass nipples.
Cosmic Carbon spokes are like this too,
but those have a 13-gauge plain section whereas these are 14-gauge.
So they work with standard nipples.

If I were to cut these spokes,
as long as the thread length becomes the same as standard nipples,
the effective length relative to the nipple wouldn't change.

DSC04169msn.jpg
I normally calculate spoke length so that the spoke and nipple end faces are flush,
but if I did that with these spokes and standard 12mm nipples

DSC04168msn.jpg
↑the threads would stick out slightly from the nipple.
In the Aksium's factory-assembled state,
the spoke protruded slightly past the threads.
(With Cosmic Carbon it's clearly sticking out quite a bit)

If you don't insist on flush appearance and instead consider the appropriate length as
"using up all the spoke threads with about 3 turns short of the nipple hole beginning,"
then it's not a problem if the spoke appears to protrude excessively from the nipple.

DSC04172msn.jpg
DSC04173msn.jpg
Like the Ksilium front hub with the carbon hub shell,
the flange isn't fixed to the hub shell,
so it spins freely when there's no spoke tension.

I keep saying this over and over, but as long as the hole count matches,
it works with paired-spoke rims without any restrictions.

DSC04175msn.jpg
So from a state like this

DSC04176msn.jpg
you can freely choose the hub shell phase when looking through the valve hole.

DSC04179msn.jpg
DSC04180msn.jpg
Built it up.

DSC04170msn.jpg
DSC04171msn.jpg
The rim weight difference is 90g, and the nipple weight difference is at least 10g,
so we've achieved over 100g of weight savings in the rotating mass.

DSC04182msn.jpg
The fact that no threads are visible from the nipple in the finished state means

DSC04181msn.jpg
they're sticking out on this side instead. But if these spoke threads were the same length as standard spokes,
they'd come out roughly flush,
so the spoke length is appropriate for the rim diameter.

I could have cut the spokes if I wanted to,
but this time I used them unmodified.

Products Mentioned in This Article

* Amazon affiliate links — prices may vary