A customer brought in the front and rear wheels from a Racing Zero Night (Fulcrum racing wheelset).

One spoke on the front wheel is broken,
and they want it repaired.
The rear wheel was just brought along while they were at it,
so I'll just do a check on that one.


↑This one


Whether the Fulcrum logo sticker on the hub shell is oriented correctly,
and whether it's aligned the same way on both wheels
is completely a matter of luck.
But on this pair of wheels,
the rear hub was oriented correctly and can't be changed,
while the front wheel was reversed and can be changed by flipping the hub axle,
so I'll align it with the rear wheel.

The important thing to watch out for here
is that you only flip "the hub axle"—nothing else.
Remove the cone that's attached to the hub axle,
and don't change the left-right orientation of the parts around the bearings.
In this case, the hub rotation had some roughness,
and the cone on the hub axle side had some pitting,
so I replaced it.


All fixed.


I aligned both wheels so that
"when the hub shell logo reads correctly,
the bearing adjusting cone is on the left side as you face it."


↑The replaced parts


The spoke's fracture surface


fits together perfectly, but


when you put them together, you can see that
the spoke was already deformed before it broke.


The rear cone is


partially pitted.
The ceramic ball on the retainer bearing on the pitted side
had a duller shine compared to the other side, but
not to any significant degree.
There were no signs of pitting on the other cone,
so I just replaced the cone.