A customer brought in a Campagnolo Racing Zero front wheel for repair.
It's the newer model with a smaller bearing diameter.
The hub shaft and right end hollow bolt are separate components, but
when the customer went to adjust it with a tool,
the right side came off first and there was nothing left to do.
It looks like there's a crack in the image above, but
it's just a mark where the tool slipped—no actual crack.
This hub shaft is the newest spare part among those I've
(arbitrarily) designated for our shop to keep in constant stock.
There's a similar but slightly different spare part used for Bora One and such,
but those come with the shaft, dust cap, and right end hollow bolt already assembled.
With hub shaft kits for Shamal Mille or Racing Zero Night,
these three parts arrive separately in loose form.
The hub shaft and dust cap have a very tight press-fit relationship—not loose at all—
so assembling these two cleanly requires some care.
You might think the pre-assembled Bora One shaft kit would be more convenient,
but actually the Bora One shaft has faint assembly marks on the 14mm gripping section
(in my experience, 100% of the time I've seen them),
so it's really six of one, half a dozen of the other.
It's the newer model with a smaller bearing diameter.
The hub shaft and right end hollow bolt are separate components, but
when the customer went to adjust it with a tool,
the right side came off first and there was nothing left to do.
It looks like there's a crack in the image above, but
it's just a mark where the tool slipped—no actual crack.
This hub shaft is the newest spare part among those I've
(arbitrarily) designated for our shop to keep in constant stock.
There's a similar but slightly different spare part used for Bora One and such,
but those come with the shaft, dust cap, and right end hollow bolt already assembled.
With hub shaft kits for Shamal Mille or Racing Zero Night,
these three parts arrive separately in loose form.
The hub shaft and dust cap have a very tight press-fit relationship—not loose at all—
so assembling these two cleanly requires some care.
You might think the pre-assembled Bora One shaft kit would be more convenient,
but actually the Bora One shaft has faint assembly marks on the 14mm gripping section
(in my experience, 100% of the time I've seen them),
so it's really six of one, half a dozen of the other.