A customer brought in the front wheel of an original-generation Bora Ultra WTO for me to work on.
The wheel had runout, so when they tried to true it themselves,
they ended up twisting the spokes.
↑The customer put tape markers on the spokes,
and if I call the left spoke in the image above spoke A and the right spoke B,
↑This is spoke A
↑This is spoke B
Both spokes show twisting, but
when I released the tension on each one,
spoke B showed actual deformation.
This deformation is severe enough to cause visible lateral runout,
but I'm not sure if the customer realized this was the source of the problem.
You might be able to barely tell from the image above if you know what to look for,
but since the spoke had yielded from the twisting,
it's now twisted even more than it was originally.
I was able to recover the spoke without breaking it.
When spokes break, twist off, or snap at the neck due to
sudden tension changes,
carbon rims like those from LEW Reynolds or ENVE
sometimes develop a distinct crack running left-right through the rim hole,
causing rim failure.
The Bora Ultra WTO rim should probably be okay,
but it's best to avoid twisting off spokes that are under tension.
I forgot to shoot a full wheel photo,
but I replaced two spokes and trued the wheel.
Besides the two replaced spokes,
I only touched one nipple.
And when I first checked with a dishing gauge
at the end of truing, it was perfectly centered.
↑It looks like there's a gap, but
on this hub, the silver part is
the end face of the hub axle.
↑The replaced spokes
Spoke B is bent, but
as I mentioned earlier,
it's twisted even more than it was originally.
↑The new spoke is at the top,
and spoke A is at the bottom.
The spoke doesn't show any bending deformation, but
compared to an untwisted spoke,
you can clearly see the twisting.
These are Campagnolo spare spokes,
and the box always indicates which wheel and which section the spoke is for,
with the length sometimes included as well.
The one in the image above is a rear right spoke for the rim brake version Bora WTO 33,
and it's also noted as being 278mm in length.
↑This is a Zonda rear right spoke.
Zonda doesn't come in a tubular rim version,
but ZOC stands for Zonda Clincher.
That said, since the original was Bola Tubular,
there are many cases where spokes with a BOT part number
are shared with Bora Clincher versions.
By the way, this is a Zonda spoke from the C15 rim era,
and for the C17 rim Zonda, the hundreds digit advances,
so for the rear right it becomes WH-118ZOC.
As for the Bora Ultra WTO spokes this time,
I couldn't find them in our shop inventory.
Wait, that's odd.
I should have ordered all the spokes in this range...
Thinking I must have overlooked something, I checked more carefully, and
↑This was it.
It says "272mm for the 45 and 60 of Bora Ultra WTO,"
but there's no marking for where to use it,
which was something I'd never seen before, so I overlooked it.
Since the radial lacing side of the 45 and the tangent lacing side of the 60
happen to be the same length,
they consolidated it into one part number, which is logical.
The spare spoke part numbers are
for the original-generation Bora Ultra WTO 45:
WH-02BWU45 Front right (this location)
WH-03BWU45 Front left/Rear right
WH-04BWU45 Rear left
and
for the original-generation Bora Ultra WTO 60:
WH-02BWU45 Front left/Rear right
WH-02BWU60 Front right
WH-03BWU60 Rear left
The numbering is a bit inconsistent. I think it would make more sense to
leave WH-03BWU60 blank and use
WH-04BWU60 instead
(it would be clearer to use 04 for rear left consistently).
In reality, WH-04BWU60 is blank,
and WH-05BWU45
is the nipple part number for the 33, 45, and 60 alike.
This indicates that the 45 is treated as the original version.
As additional info,
for the original-generation Bora Ultra WTO 33:
WH-02BWU33 Front left/Rear right
WH-03BWU33 Front right
WH-04BWU33 Rear left
so 04 is rear left, but
on the 45, 03 is tangent side for both wheels,
and 02 is front right, whereas
on the 33 it's reversed.
Ugh, it's confusing.
The wheel had runout, so when they tried to true it themselves,
they ended up twisting the spokes.
↑The customer put tape markers on the spokes,
and if I call the left spoke in the image above spoke A and the right spoke B,
↑This is spoke A
↑This is spoke B
Both spokes show twisting, but
when I released the tension on each one,
spoke B showed actual deformation.
This deformation is severe enough to cause visible lateral runout,
but I'm not sure if the customer realized this was the source of the problem.
You might be able to barely tell from the image above if you know what to look for,
but since the spoke had yielded from the twisting,
it's now twisted even more than it was originally.
I was able to recover the spoke without breaking it.
When spokes break, twist off, or snap at the neck due to
sudden tension changes,
carbon rims like those from LEW Reynolds or ENVE
sometimes develop a distinct crack running left-right through the rim hole,
causing rim failure.
The Bora Ultra WTO rim should probably be okay,
but it's best to avoid twisting off spokes that are under tension.
I forgot to shoot a full wheel photo,
but I replaced two spokes and trued the wheel.
Besides the two replaced spokes,
I only touched one nipple.
And when I first checked with a dishing gauge
at the end of truing, it was perfectly centered.
↑It looks like there's a gap, but
on this hub, the silver part is
the end face of the hub axle.
↑The replaced spokes
Spoke B is bent, but
as I mentioned earlier,
it's twisted even more than it was originally.
↑The new spoke is at the top,
and spoke A is at the bottom.
The spoke doesn't show any bending deformation, but
compared to an untwisted spoke,
you can clearly see the twisting.
These are Campagnolo spare spokes,
and the box always indicates which wheel and which section the spoke is for,
with the length sometimes included as well.
The one in the image above is a rear right spoke for the rim brake version Bora WTO 33,
and it's also noted as being 278mm in length.
↑This is a Zonda rear right spoke.
Zonda doesn't come in a tubular rim version,
but ZOC stands for Zonda Clincher.
That said, since the original was Bola Tubular,
there are many cases where spokes with a BOT part number
are shared with Bora Clincher versions.
By the way, this is a Zonda spoke from the C15 rim era,
and for the C17 rim Zonda, the hundreds digit advances,
so for the rear right it becomes WH-118ZOC.
As for the Bora Ultra WTO spokes this time,
I couldn't find them in our shop inventory.
Wait, that's odd.
I should have ordered all the spokes in this range...
Thinking I must have overlooked something, I checked more carefully, and
↑This was it.
It says "272mm for the 45 and 60 of Bora Ultra WTO,"
but there's no marking for where to use it,
which was something I'd never seen before, so I overlooked it.
Since the radial lacing side of the 45 and the tangent lacing side of the 60
happen to be the same length,
they consolidated it into one part number, which is logical.
The spare spoke part numbers are
for the original-generation Bora Ultra WTO 45:
WH-02BWU45 Front right (this location)
WH-03BWU45 Front left/Rear right
WH-04BWU45 Rear left
and
for the original-generation Bora Ultra WTO 60:
WH-02BWU45 Front left/Rear right
WH-02BWU60 Front right
WH-03BWU60 Rear left
The numbering is a bit inconsistent. I think it would make more sense to
leave WH-03BWU60 blank and use
WH-04BWU60 instead
(it would be clearer to use 04 for rear left consistently).
In reality, WH-04BWU60 is blank,
and WH-05BWU45
is the nipple part number for the 33, 45, and 60 alike.
This indicates that the 45 is treated as the original version.
As additional info,
for the original-generation Bora Ultra WTO 33:
WH-02BWU33 Front left/Rear right
WH-03BWU33 Front right
WH-04BWU33 Rear left
so 04 is rear left, but
on the 45, 03 is tangent side for both wheels,
and 02 is front right, whereas
on the 33 it's reversed.
Ugh, it's confusing.