Wheels again today (and so on).
Continuing from yesterday.
Built my teammate's front wheel.
PowerTap hub, 20H
CX-RAY outpoke radial lacing.
Even though it's a PowerTap hub,
naturally the power measurement function
is only on the rear hub.
This is a front hub that the manufacturer made
so they could offer complete wheelsets for both front and rear.
The customer who brought in this rim this time
is "technically" a customer, but
they're on the same team I'm on, so
I can be a bit more honest in what I write.
Looking back on it,
I recently built a CXP Pro Carbon 40 UST rim for something else,
and even though it's heavier in absolute weight,
I thought it had a superior height-to-weight ratio.
For example, the rims on Nomu Lab Wheels #1 and #5
each have rim heights of 30mm and 22mm,
and weights (average of many actual measurements, not just spec)
of 462g and 378g respectively,
so that's "84g difference for 8mm of height."
Which works out to roughly "about 10g per millimeter of height!"
as an evaluation.
In contrast, between the Open Pro Carbon 25 UST
and the CXP Pro Carbon 40 UST,
with a rim height difference of 15mm (a difference matching the numbers in the model names,
though strictly speaking this differs from actual measured rim height)
there was only about 15g of weight difference.
Compared to the earlier example of "about 10g per millimeter of height,"
this means "only about 1g added per millimeter of height,
so if the taller rim spreads weight thinner around the inner section
and shorter spokes make the wheel stiffer,
then basically everything is a win," right?
I'm not going to tell you the specific weights.
If you want to know, calculate it yourself from the CXP 40 specs.
↑wow this guy's got a bad attitude
Sorry for the wait! Please take a look at this image!
It's the Open Pro Carbon 25 UST!
I'm also posting the CXP Pro Carbon 40 UST from the other day!
↑Stop that!
Continuing from yesterday.
Built my teammate's front wheel.
PowerTap hub, 20H
CX-RAY outpoke radial lacing.
Even though it's a PowerTap hub,
naturally the power measurement function
is only on the rear hub.
This is a front hub that the manufacturer made
so they could offer complete wheelsets for both front and rear.
The customer who brought in this rim this time
is "technically" a customer, but
they're on the same team I'm on, so
I can be a bit more honest in what I write.
Looking back on it,
I recently built a CXP Pro Carbon 40 UST rim for something else,
and even though it's heavier in absolute weight,
I thought it had a superior height-to-weight ratio.
For example, the rims on Nomu Lab Wheels #1 and #5
each have rim heights of 30mm and 22mm,
and weights (average of many actual measurements, not just spec)
of 462g and 378g respectively,
so that's "84g difference for 8mm of height."
Which works out to roughly "about 10g per millimeter of height!"
as an evaluation.
In contrast, between the Open Pro Carbon 25 UST
and the CXP Pro Carbon 40 UST,
with a rim height difference of 15mm (a difference matching the numbers in the model names,
though strictly speaking this differs from actual measured rim height)
there was only about 15g of weight difference.
Compared to the earlier example of "about 10g per millimeter of height,"
this means "only about 1g added per millimeter of height,
so if the taller rim spreads weight thinner around the inner section
and shorter spokes make the wheel stiffer,
then basically everything is a win," right?
I'm not going to tell you the specific weights.
If you want to know, calculate it yourself from the CXP 40 specs.
↑wow this guy's got a bad attitude
Sorry for the wait! Please take a look at this image!
It's the Open Pro Carbon 25 UST!
I'm also posting the CXP Pro Carbon 40 UST from the other day!
↑Stop that!