Another day, another wheel (and so on).
A customer left me with the front wheel from an FF Yamaguchi F4R.
A spoke flew off while riding,
which on its own I could fix right away, but...
The rim eyelet burst, so it's beyond repair.
The rim sidewall is also bulged out with permanent deformation.
Carbon products are basically like layering multiple sheets of fabric over a balloon
(with the outermost layer sometimes done in a nice patterned finish)
and then hardening it with thick corn syrup that doesn't melt at room temperature (then you pop the balloon)—
but in this case, that syrup has shattered like glass.
At the customer's suggestion, we decided to build a new wheel
using a Nomu Lab Wheel 2 rim,
but I confirmed beforehand that spoke length won't carry over.
The Nomu Lab Wheel 2 rim has a lower rim height and uses internal nipples,
both of which require longer spokes,
but if the F4R alone had internal nipples as a spec,
we might have been able to reuse the spokes.
This job involves swapping from FF Yamaguchi to a Tni carbon rim, but
actually it's a swap from a WH211 rim to a WH199 rim from the same manufacturer.
↑Meaning front 20H
The WH211 rim width is slightly wider.
The WH211 was made in 2016, the WH199 in 2020.
Early on in this blog, I wrote about FF Yamaguchi wheels that
they're not worth the hype the maker gives them
(the rear being your standard 24H all CX-RAY 4x laced wheel—
nothing more than typical hand-built territory),
and I got a scolding comment from someone who had some weird delusion about the FF Yamaguchi brand.
When I wrote about a similar case like this one (→here)
it stirred up quite a bit of noise,
but these days everyone seems to have gotten used to it.
This blog has corrupted your thinking.
Built.
A 240S hub 20H in a color you might mistake for a DT350,
black CX-RAY outpoke radial laced.
A customer left me with the front wheel from an FF Yamaguchi F4R.
A spoke flew off while riding,
which on its own I could fix right away, but...
The rim eyelet burst, so it's beyond repair.
The rim sidewall is also bulged out with permanent deformation.
Carbon products are basically like layering multiple sheets of fabric over a balloon
(with the outermost layer sometimes done in a nice patterned finish)
and then hardening it with thick corn syrup that doesn't melt at room temperature (then you pop the balloon)—
but in this case, that syrup has shattered like glass.
At the customer's suggestion, we decided to build a new wheel
using a Nomu Lab Wheel 2 rim,
but I confirmed beforehand that spoke length won't carry over.
The Nomu Lab Wheel 2 rim has a lower rim height and uses internal nipples,
both of which require longer spokes,
but if the F4R alone had internal nipples as a spec,
we might have been able to reuse the spokes.
This job involves swapping from FF Yamaguchi to a Tni carbon rim, but
actually it's a swap from a WH211 rim to a WH199 rim from the same manufacturer.
↑Meaning front 20H
The WH211 rim width is slightly wider.
The WH211 was made in 2016, the WH199 in 2020.
Early on in this blog, I wrote about FF Yamaguchi wheels that
they're not worth the hype the maker gives them
(the rear being your standard 24H all CX-RAY 4x laced wheel—
nothing more than typical hand-built territory),
and I got a scolding comment from someone who had some weird delusion about the FF Yamaguchi brand.
When I wrote about a similar case like this one (→here)
it stirred up quite a bit of noise,
but these days everyone seems to have gotten used to it.
This blog has corrupted your thinking.
Built.
A 240S hub 20H in a color you might mistake for a DT350,
black CX-RAY outpoke radial laced.