Another wheel day (and so on).
Built Nomu Lab Wheel #5 using a Circus Monkey disc hub.
Front wheel: HDW2 hub, 24H, all-black Campagnolo 14-gauge reversed Italian lacing.
Pretty pronounced high-low hub this one.
The notches cut into the flange—whether for weight reduction, design, or stress relief—I can't say for sure, but
when threading inpoke spokes through the low-side flange, without these notches
you'd need to bend the spokes (within their elastic deformation limits, of course),
so it definitely helps with assembly workability.
Got the rear wheel built too.
HDW2+ hub, 24H, all-black Campagnolo 14×16 JIS lacing.
Wire tying comes later.
Doesn't look like a high-low flange, but it's subtly one.
The diameter difference is 3.5mm,
but where the manufacturer lists 60/56.5mm,
the dimensions I need came out to 59.5/56mm.
This isn't a case where the numbers always differ from the manufacturer's specs.
It's not a Shimano standard per se, but
with Shimano hubs the variance doesn't even hit 0.1mm.
Checking spoke length against both the manufacturer's specs and my adopted figures,
I found about 0.1mm difference on the freewheel side and about 0.3mm on the non-freewheel side.
In any case, that's within what the nipple threads can absorb.
For flange width too, I measured directly rather than trust the specs,
so that difference factors in as well.
The rear hub's over-locknut dimension is listed as 135mm nominally,
but it came in slightly short.
The point I'm trying to make here: don't trust nominal values.
DT rim stickers with their listed rim inner diameters are especially unreliable.
Trust those and you'll waste a whole set of spokes.
The slot for flat spokes is cut at an angle, so depending on rim diameter and lacing method, there's a possibility the spokes could be pulled in the slot direction.
But in reality that would only happen with true tangent lacing, which isn't possible with a 24H hub anyway,
so there's essentially no issue here.
In this hole, the spoke direction and slot are facing nearly 180° apart,
but with the fellow spoke making the final crossing with this one—
↑—it looks like this.
Built Nomu Lab Wheel #5 using a Circus Monkey disc hub.
Front wheel: HDW2 hub, 24H, all-black Campagnolo 14-gauge reversed Italian lacing.
Pretty pronounced high-low hub this one.
The notches cut into the flange—whether for weight reduction, design, or stress relief—I can't say for sure, but
when threading inpoke spokes through the low-side flange, without these notches
you'd need to bend the spokes (within their elastic deformation limits, of course),
so it definitely helps with assembly workability.
Got the rear wheel built too.
HDW2+ hub, 24H, all-black Campagnolo 14×16 JIS lacing.
Wire tying comes later.
Doesn't look like a high-low flange, but it's subtly one.
The diameter difference is 3.5mm,
but where the manufacturer lists 60/56.5mm,
the dimensions I need came out to 59.5/56mm.
This isn't a case where the numbers always differ from the manufacturer's specs.
It's not a Shimano standard per se, but
with Shimano hubs the variance doesn't even hit 0.1mm.
Checking spoke length against both the manufacturer's specs and my adopted figures,
I found about 0.1mm difference on the freewheel side and about 0.3mm on the non-freewheel side.
In any case, that's within what the nipple threads can absorb.
For flange width too, I measured directly rather than trust the specs,
so that difference factors in as well.
The rear hub's over-locknut dimension is listed as 135mm nominally,
but it came in slightly short.
The point I'm trying to make here: don't trust nominal values.
DT rim stickers with their listed rim inner diameters are especially unreliable.
Trust those and you'll waste a whole set of spokes.
The slot for flat spokes is cut at an angle, so depending on rim diameter and lacing method, there's a possibility the spokes could be pulled in the slot direction.
But in reality that would only happen with true tangent lacing, which isn't possible with a 24H hub anyway,
so there's essentially no issue here.
In this hole, the spoke direction and slot are facing nearly 180° apart,
but with the fellow spoke making the final crossing with this one—
↑—it looks like this.