Another day with wheels (and so on).
A customer (sort of) dropped off
a rear wheel built with an Iron Cross,
a super rare discontinued Stans rim.
At the first Kansai cyclocross race at Katsuragawa,
the rider ahead crashed,
so they braked hard and got stuck in traffic,
and then got rear-ended.
The rim became completely warped.
It's the most artistically impressive
potato chip effect I've seen in years.
Actually, our shop had been
holding an Iron Cross rim in reserve
for this customer (sort of).
We had two of them,
so we'll use one for the repair.
Finally the day to use it has come.
This is a lightweight rim with a maximum air pressure rating of 3.1 bar—
only usable for cyclocross.
Well, these days road bikes can exist with that kind of pressure too,
but those typically have an internal width of 23mm
or wider rims,
or are hookless rims.
This rim is designed for nominally 32-33C tires
with an internal width of only 20.0mm—
just barely tight enough so the tire width never exceeds that.
The current Crest MK4 rim's
predecessor from two generations back,
the Crest, shares the same cosmetic design as
this Iron Cross with an internal width of 20.5mm.
When equipped with IRC Sila CX 32C tires,
the actual tire width exceeds 33mm,
which would be a regulation violation in higher categories.
Moving the rim over...
In this case,
it's significant that the spokes connected to the freewheel side
are the ones on the deformed rim.
Since the customer (sort of) upgraded their drivetrain to 12-speed,
we're changing the freewheel side from Competition to CX Sprint,
and transferring the pre-laced CX-RAY spokes
from the non-freewheel side to the new rim.
↑With spoke tension released,
aligning the rims by the valve hole position looks like this
Built.
Remounting the tire after cleaning off the Katsuragawa mud.
As I mentioned earlier,
we've changed the freewheel side to CX Sprint.
A customer (sort of) dropped off
a rear wheel built with an Iron Cross,
a super rare discontinued Stans rim.
At the first Kansai cyclocross race at Katsuragawa,
the rider ahead crashed,
so they braked hard and got stuck in traffic,
and then got rear-ended.
The rim became completely warped.
It's the most artistically impressive
potato chip effect I've seen in years.
Actually, our shop had been
holding an Iron Cross rim in reserve
for this customer (sort of).
We had two of them,
so we'll use one for the repair.
Finally the day to use it has come.
This is a lightweight rim with a maximum air pressure rating of 3.1 bar—
only usable for cyclocross.
Well, these days road bikes can exist with that kind of pressure too,
but those typically have an internal width of 23mm
or wider rims,
or are hookless rims.
This rim is designed for nominally 32-33C tires
with an internal width of only 20.0mm—
just barely tight enough so the tire width never exceeds that.
The current Crest MK4 rim's
predecessor from two generations back,
the Crest, shares the same cosmetic design as
this Iron Cross with an internal width of 20.5mm.
When equipped with IRC Sila CX 32C tires,
the actual tire width exceeds 33mm,
which would be a regulation violation in higher categories.
Moving the rim over...
In this case,
it's significant that the spokes connected to the freewheel side
are the ones on the deformed rim.
Since the customer (sort of) upgraded their drivetrain to 12-speed,
we're changing the freewheel side from Competition to CX Sprint,
and transferring the pre-laced CX-RAY spokes
from the non-freewheel side to the new rim.
↑With spoke tension released,
aligning the rims by the valve hole position looks like this
Built.
Remounting the tire after cleaning off the Katsuragawa mud.
As I mentioned earlier,
we've changed the freewheel side to CX Sprint.