Another day of wheel building (and so on).
A customer left me with Novatec
six-hole rotor disc brake hubs.
When I rolled them on the floor, they went straight ahead.
That means they have equal-diameter flanges on both sides.
（Equal diameter refers to the edge of the flanges,
but if the spoke hole positions differ left and right from the hub center,
the effective flange diameter wouldn't be the same—but in this case, the effective flange diameter is also the same）
The front hub is model D041, and the rear hub is D042.
D041 is pronounced "Dee zero four-one," but
searching for DO41 "Dee oh four-one"
also turns up decent results.
Starting with the front wheel.
The rim is a Reynolds DV46UL/T.
Built the D041 hub with 20 spokes in black, full competition four-four reverse Italian lacing.
With the flange dish of a disc front hub,
I don't think you should use semi-competition left-right unequal-diameter lacing,
but since a 20-spoke hub can't accommodate four-six lacing, semi-competition might have been better.
This hub's flange diameter is about the same as a PowerTap G3, so
I considered doing true maximum-rake lacing with 28 spokes to just barely allow four-eight lacing,
or with 20 spokes doing true maximum-rake lacing with four-six lacing.
（Since it's reverse dish, that would be six-four lacing）
Alternatively, using competition/championed lacing would reduce
the left-right difference in spoke stress compared to semi-competition.
（Though it would be heavier than full competition）
After thinking through all these options, I ended up building a "normal front wheel" for the first time in a while,
but the non-rotor side was slightly loose, so I did add lateral bracing.
I told the customer "If I think lateral bracing is necessary, I'll add it,"
because I had a hunch from the start that this assembly method would be the answer.
I wouldn't have used lateral bracing with 24 spokes in six-four lacing.
Also, if this hub had a more pronounced low-high flange asymmetry,
I probably wouldn't have needed lateral bracing—or rather, wouldn't have added it.
This rim has damage from buckling or brake heat,
but the customer has repaired it by building up carbon.
Since it's only used for cyclocross, I took on the wheel build job.
I'm not usually fussy about wheel balance,
but this much built-up area will definitely make the front wheel wobble wildly on high-speed descents.
They say that's not how they'll ride it, but please don't do that.
For some reason, when I first received it, I didn't notice that
"if the braking zone is built up, the wheel must be incredibly difficult to build."
Even if I had noticed, I wouldn't have turned down the job,
but it was super difficult to build.
Next, the rear wheel.
Built with a Nomu Lab Wheel 2.5 rim.
24 spokes, black semi-competition four-six JIS lacing with lateral bracing.
A customer left me with Novatec
six-hole rotor disc brake hubs.
When I rolled them on the floor, they went straight ahead.
That means they have equal-diameter flanges on both sides.
（Equal diameter refers to the edge of the flanges,
but if the spoke hole positions differ left and right from the hub center,
the effective flange diameter wouldn't be the same—but in this case, the effective flange diameter is also the same）
The front hub is model D041, and the rear hub is D042.
D041 is pronounced "Dee zero four-one," but
searching for DO41 "Dee oh four-one"
also turns up decent results.
Starting with the front wheel.
The rim is a Reynolds DV46UL/T.
Built the D041 hub with 20 spokes in black, full competition four-four reverse Italian lacing.
With the flange dish of a disc front hub,
I don't think you should use semi-competition left-right unequal-diameter lacing,
but since a 20-spoke hub can't accommodate four-six lacing, semi-competition might have been better.
This hub's flange diameter is about the same as a PowerTap G3, so
I considered doing true maximum-rake lacing with 28 spokes to just barely allow four-eight lacing,
or with 20 spokes doing true maximum-rake lacing with four-six lacing.
（Since it's reverse dish, that would be six-four lacing）
Alternatively, using competition/championed lacing would reduce
the left-right difference in spoke stress compared to semi-competition.
（Though it would be heavier than full competition）
After thinking through all these options, I ended up building a "normal front wheel" for the first time in a while,
but the non-rotor side was slightly loose, so I did add lateral bracing.
I told the customer "If I think lateral bracing is necessary, I'll add it,"
because I had a hunch from the start that this assembly method would be the answer.
I wouldn't have used lateral bracing with 24 spokes in six-four lacing.
Also, if this hub had a more pronounced low-high flange asymmetry,
I probably wouldn't have needed lateral bracing—or rather, wouldn't have added it.
This rim has damage from buckling or brake heat,
but the customer has repaired it by building up carbon.
Since it's only used for cyclocross, I took on the wheel build job.
I'm not usually fussy about wheel balance,
but this much built-up area will definitely make the front wheel wobble wildly on high-speed descents.
They say that's not how they'll ride it, but please don't do that.
For some reason, when I first received it, I didn't notice that
"if the braking zone is built up, the wheel must be incredibly difficult to build."
Even if I had noticed, I wouldn't have turned down the job,
but it was super difficult to build.
Next, the rear wheel.
Built with a Nomu Lab Wheel 2.5 rim.
24 spokes, black semi-competition four-six JIS lacing with lateral bracing.