A customer brought in the rear wheel of a Mavic Aksium (wheelset brand) for me to work on.

It's not that there's anything wrong with the wheel itself,
but for certain reasons we needed to widen the over-locknut dimension slightly,
so they brought it in to see if that was even possible.


The Aksium rear wheel has a threaded axle only on the left end.
Since I knew this going in, I'd already told the customer "it might be possible,"
and it turned out I could add a standard hub spacer to some degree.
The right end isn't threaded, but shifting adjustment would change if we modified it,
so we couldn't alter the right-end dimension anyway.
The fact that the original over-locknut dimension was almost exactly 131mm worked out nicely too.

Adding the spacer caused the wheel to run quite off-center,
so I had to re-true it.
I can't say whether it was off-center to begin with—
didn't check for that since I was going to true it anyway.


↑This way of selling tires is pretty brilliant marketing.
Some people might feel hesitant about fitting different brand tires on it.