Today, another wheel (and so on)... but before that.
A customer left with me an IKEA storage bag with handles containing two wheel bags.
It's a clear material, essentially like blue sheeting, and the product name is DIMPA (ディムパ).
The stated size is a 65×65cm square with a depth of 22cm,
but since a wheelset without tires has a diameter of around 650mm
and the combined front-to-back over-locknut dimension without the wheel bags is just 242mm,
since it's not a hard case, the two wheel bags fit with some room to spare.
Though it might be tight if the wheels inside had tires on them.
As a way to store two wheel bags in closets, storage sheds, or vehicles, it seems good for both protecting the wheels
and preventing dirt from the wheels from getting onto the storage area.
The zipper has two tabs, so you can freely decide which direction to open it
and where to position the tab when closed.
Anyway, I received a wheel from the Princeton brand from the customer.
It's a carbon tubeless rim wheel with a wavy contour on the inner side.
Today I'm working on the front wheel.
It's a rim shape that ZIPP would be mad about, but they actually sued.
ZIPP, or rather SRAM, is demanding from Princeton triple damages and destruction of the manufacturer's rim inventory,
but the suit that started two years ago with accusations has been decided to go to jury trial,
and it's scheduled to start right this month on February 13th for two weeks.
Depending on the outcome, this rim might become unavailable.
Princeton
Carbonworks
Wake (model name) 6560—the numbers represent the rim heights at the high and low sections respectively.
When I actually measured it, it was 65.7/60.2mm rather than 65/60mm.
The reason the customer brought it in is that from the final crossing of the rear wheel spokes, there's been a constant cracking sound.
A short while back, our shop judged from the hanging condition that it could still be tensioned
and tightened the spoke tension as much as possible,
but while it improved somewhat, the issue wasn't resolved.
We'll rebuild this with a DT straight-spoke hub.
Since we bought hubs for both wheels, we're also rebuilding the front wheel.
The original condition was both wheels with Tune hubs, 24H,
all-black CX-RAY in 4-cross lacing.
Geez, this rim has no holes on the outer side!
I took it apart.
I've secured the nipples with tape so they don't fall into the rim,
but out of the 24 holes I recovered just one nipple.
The nipples are 14mm long—I'm almost certain of it, but I measured them properly anyway.
Also showing off that I use Mitutoyo calipers.
Also, I wanted to know the thickness of the rim holes to determine the inner diameter of the rim.
The weight of the rim plus 23 nipples plus tape.
The weight of the tape alone.
It very rarely shows 1g but mostly read 0g.
Then, using 23 Sapim 14mm black aluminum nipples (different from the ones that were actually on the rim),
By subtracting this weight from the weight of the rim with nipples I measured earlier,
I get a pretty accurate weight for the rim alone.
While it's not particularly light in absolute weight,
relative to its rim height it's a pretty light rim.
All built.
DT180 straight-spoke hub, 24H,
semi-black CX Sprint, left-right fully crossed 2-cross lacing, no wire lacing.
The customer left with me 12 black CX-RAY straights each for front, rear, left, and right,
and when I checked the lengths, somehow
they came out just right,
but since there's some left over anyway, I was told it's fine to use black CX Sprint on one side.
I wove the final crossing on both sides.
With manufacturer wheels using this hub, the final crossing is often not woven,
and if you don't weave it, you'll absolutely never get noise from the crossing,
but after consulting with the customer we decided to weave it.
If it does make noise, we might add wire lacing.
A customer left with me an IKEA storage bag with handles containing two wheel bags.
It's a clear material, essentially like blue sheeting, and the product name is DIMPA (ディムパ).
The stated size is a 65×65cm square with a depth of 22cm,
but since a wheelset without tires has a diameter of around 650mm
and the combined front-to-back over-locknut dimension without the wheel bags is just 242mm,
since it's not a hard case, the two wheel bags fit with some room to spare.
Though it might be tight if the wheels inside had tires on them.
As a way to store two wheel bags in closets, storage sheds, or vehicles, it seems good for both protecting the wheels
and preventing dirt from the wheels from getting onto the storage area.
The zipper has two tabs, so you can freely decide which direction to open it
and where to position the tab when closed.
Anyway, I received a wheel from the Princeton brand from the customer.
It's a carbon tubeless rim wheel with a wavy contour on the inner side.
Today I'm working on the front wheel.
It's a rim shape that ZIPP would be mad about, but they actually sued.
ZIPP, or rather SRAM, is demanding from Princeton triple damages and destruction of the manufacturer's rim inventory,
but the suit that started two years ago with accusations has been decided to go to jury trial,
and it's scheduled to start right this month on February 13th for two weeks.
Depending on the outcome, this rim might become unavailable.
Princeton
Carbonworks
Wake (model name) 6560—the numbers represent the rim heights at the high and low sections respectively.
When I actually measured it, it was 65.7/60.2mm rather than 65/60mm.
The reason the customer brought it in is that from the final crossing of the rear wheel spokes, there's been a constant cracking sound.
A short while back, our shop judged from the hanging condition that it could still be tensioned
and tightened the spoke tension as much as possible,
but while it improved somewhat, the issue wasn't resolved.
We'll rebuild this with a DT straight-spoke hub.
Since we bought hubs for both wheels, we're also rebuilding the front wheel.
The original condition was both wheels with Tune hubs, 24H,
all-black CX-RAY in 4-cross lacing.
Geez, this rim has no holes on the outer side!
I took it apart.
I've secured the nipples with tape so they don't fall into the rim,
but out of the 24 holes I recovered just one nipple.
The nipples are 14mm long—I'm almost certain of it, but I measured them properly anyway.
Also, I wanted to know the thickness of the rim holes to determine the inner diameter of the rim.
The weight of the rim plus 23 nipples plus tape.
The weight of the tape alone.
It very rarely shows 1g but mostly read 0g.
Then, using 23 Sapim 14mm black aluminum nipples (different from the ones that were actually on the rim),
By subtracting this weight from the weight of the rim with nipples I measured earlier,
I get a pretty accurate weight for the rim alone.
While it's not particularly light in absolute weight,
relative to its rim height it's a pretty light rim.
All built.
DT180 straight-spoke hub, 24H,
semi-black CX Sprint, left-right fully crossed 2-cross lacing, no wire lacing.
The customer left with me 12 black CX-RAY straights each for front, rear, left, and right,
and when I checked the lengths, somehow
they came out just right,
but since there's some left over anyway, I was told it's fine to use black CX Sprint on one side.
I wove the final crossing on both sides.
With manufacturer wheels using this hub, the final crossing is often not woven,
and if you don't weave it, you'll absolutely never get noise from the crossing,
but after consulting with the customer we decided to weave it.
If it does make noise, we might add wire lacing.