Wheels today (and so on).
Continuing from the other day.
I'm rebuilding the rear wheel on the Roval C38.
DT350 hub, 24H, all-black Competition Race spokes
It's a 4-cross lacing, but
It wasn't reverse Italian, it was Italian lacing.
Unlike the front wheel, the wheel center was centered.
On the tubeless tape that was applied to the rim, there's a marking that says "tubeless ready," but
since the original CLX50 and Alpinist wheels and others are designated as not tubeless-compatible,
there's no tubeless ready marking on them—
they've deliberately applied a rim tape with only the Roval branding and no tubeless ready marking instead.
When I shined a light inside the rim, there were places showing traces of sealant infiltration,
and some brass nipples showed signs of corrosion.
Running in heavy rain could result in the same condition even if water gets inside the rim, but
around the drainage hole on the rim sidewall, sealant has accumulated somewhat,
so the main cause of corrosion appears to be moisture from the sealant rather than rainwater.
The rim tape application was fine, and since sealant traces are frequently visible inside the rim near the valve hole,
it seems the tubeless valve wasn't tightened enough—
sealant must have leaked into the rim from the valve hole.
Rebuilt.
DT350 hub, 24H, black CX Sprint spokes
4-6 JIS lacing.
I'll solder the spokes later.
As I mentioned in the front wheel article,
the C38 rim is heavier than the CLX/CL50 rims.
With the Dura-Ace and Ultegra complete wheelsets from the R9200 generation,
the tubeless-ready rims differ only cosmetically—
the C36s are identical to each other, and the C50s are identical to each other
(at least there's no weight difference).
In the 105-grade WH-RS710, this unfolds to C32 and C46,
which are 4mm lower in rim height compared to C36 and C50 respectively,
but because the rim height is lower, it doesn't mean they're lighter than the higher-grade rims—
they've deliberately made them heavier as a differentiation.
They're doing the exact same thing with the CLX50 and C38 rims,
and the reason I can state with certainty that the C38 rim is heavier
is because I actually measured the weight,
but I don't intend to share the specific numbers here.
↑Wow, what a mean thing to do
Sorry for the wait! Please have a look at this image!
Front wheel rim!
Rear wheel rim!
↑Stop it already!
Continuing from the other day.
I'm rebuilding the rear wheel on the Roval C38.
DT350 hub, 24H, all-black Competition Race spokes
It's a 4-cross lacing, but
It wasn't reverse Italian, it was Italian lacing.
Unlike the front wheel, the wheel center was centered.
On the tubeless tape that was applied to the rim, there's a marking that says "tubeless ready," but
since the original CLX50 and Alpinist wheels and others are designated as not tubeless-compatible,
there's no tubeless ready marking on them—
they've deliberately applied a rim tape with only the Roval branding and no tubeless ready marking instead.
When I shined a light inside the rim, there were places showing traces of sealant infiltration,
and some brass nipples showed signs of corrosion.
Running in heavy rain could result in the same condition even if water gets inside the rim, but
around the drainage hole on the rim sidewall, sealant has accumulated somewhat,
so the main cause of corrosion appears to be moisture from the sealant rather than rainwater.
The rim tape application was fine, and since sealant traces are frequently visible inside the rim near the valve hole,
it seems the tubeless valve wasn't tightened enough—
sealant must have leaked into the rim from the valve hole.
Rebuilt.
DT350 hub, 24H, black CX Sprint spokes
4-6 JIS lacing.
I'll solder the spokes later.
As I mentioned in the front wheel article,
the C38 rim is heavier than the CLX/CL50 rims.
With the Dura-Ace and Ultegra complete wheelsets from the R9200 generation,
the tubeless-ready rims differ only cosmetically—
the C36s are identical to each other, and the C50s are identical to each other
(at least there's no weight difference).
In the 105-grade WH-RS710, this unfolds to C32 and C46,
which are 4mm lower in rim height compared to C36 and C50 respectively,
but because the rim height is lower, it doesn't mean they're lighter than the higher-grade rims—
they've deliberately made them heavier as a differentiation.
They're doing the exact same thing with the CLX50 and C38 rims,
and the reason I can state with certainty that the C38 rim is heavier
is because I actually measured the weight,
but I don't intend to share the specific numbers here.
↑Wow, what a mean thing to do
Sorry for the wait! Please have a look at this image!
Front wheel rim!
Rear wheel rim!
↑Stop it already!