A customer brought in the rear wheel of a first generation Zonda G3 for me.
By "first generation," I don't mean the first Zonda model ever made—
I mean the first model of Zonda after it became the G3.
The Zonda model name itself had been used before this.
Among Campagnolo wheels,
most models other than the low-profile rim versions
are named after winds,
and you see similar examples in cars:
Zonda (Pagani),
Scirocco (Volkswagen),
Bora (Volkswagen),
Shamal (Maserati), Ghibli (Maserati),
Khamsin (Maserati), and so on.
Eurus isn't the name of a wind itself, but rather comes from
Euros, the east wind deity in Greek mythology
among the gods of the four cardinal winds,
so in the future we might see wheels named after
Zephyrus (west wind), Notus (south wind), and Boreas (north wind).
By the way, Zephyrus's English name is Zephyr,
which has been used in things like Kawasaki motorcycles and
Neal Pride bicycle frames.
Originally it had a Campagnolo-compatible freebody installed,
and that freebody was also kept in a pocket of the wheel bag,
but when it was brought in,
it had been removed as shown in the image above.
The customer wants to change this to a
Shimano 11-speed freebody.
This is a common situation:
someone buys a Campagnolo rear wheel at auction that comes with
a Campagnolo freebody and asks to swap it for
a Shimano freebody. But in this case, the customer
was the original owner of this wheel and actually
did have bikes with Campagnolo components
(past tense) as well.
To switch to the latest white-anodized Shimano aluminum freebody,
the hub axle needs to be changed to one with a groove cutout,
and there are two types of hub axles:
The earlier version is FH-BO001,
and its minor revision is FH-BO101.
FH-BO001 is the older version,
but for the actual parts shown in the image above,
the spare parts manufacture date shows that 001 is actually later,
so 001 is made in Romania and 101 is made in Italy.
↑Top image is 001, bottom is 101.
The bearing adjustment nut thread pitch
is finer on the 101.
This older bearing adjustment nut
only works with 001.
I replaced it.
I was glad to have the freebody in stock as well.
There was some centering drift to the right side that seemed to be age-related,
and also a bit of wobble, but I fixed all of it.
By "first generation," I don't mean the first Zonda model ever made—
I mean the first model of Zonda after it became the G3.
The Zonda model name itself had been used before this.
Among Campagnolo wheels,
most models other than the low-profile rim versions
are named after winds,
and you see similar examples in cars:
Zonda (Pagani),
Scirocco (Volkswagen),
Bora (Volkswagen),
Shamal (Maserati), Ghibli (Maserati),
Khamsin (Maserati), and so on.
Eurus isn't the name of a wind itself, but rather comes from
Euros, the east wind deity in Greek mythology
among the gods of the four cardinal winds,
so in the future we might see wheels named after
Zephyrus (west wind), Notus (south wind), and Boreas (north wind).
By the way, Zephyrus's English name is Zephyr,
which has been used in things like Kawasaki motorcycles and
Neal Pride bicycle frames.
Originally it had a Campagnolo-compatible freebody installed,
and that freebody was also kept in a pocket of the wheel bag,
but when it was brought in,
it had been removed as shown in the image above.
The customer wants to change this to a
Shimano 11-speed freebody.
This is a common situation:
someone buys a Campagnolo rear wheel at auction that comes with
a Campagnolo freebody and asks to swap it for
a Shimano freebody. But in this case, the customer
was the original owner of this wheel and actually
did have bikes with Campagnolo components
To switch to the latest white-anodized Shimano aluminum freebody,
the hub axle needs to be changed to one with a groove cutout,
and there are two types of hub axles:
The earlier version is FH-BO001,
and its minor revision is FH-BO101.
FH-BO001 is the older version,
but for the actual parts shown in the image above,
the spare parts manufacture date shows that 001 is actually later,
so 001 is made in Romania and 101 is made in Italy.
↑Top image is 001, bottom is 101.
The bearing adjustment nut thread pitch
is finer on the 101.
This older bearing adjustment nut
only works with 001.
I replaced it.
I was glad to have the freebody in stock as well.
There was some centering drift to the right side that seemed to be age-related,
and also a bit of wobble, but I fixed all of it.