A customer brought in a Bora Ultra wheel for service.
They requested truing. And sure enough, the front wheel had some obvious runout that was visible even without putting it in a truing stand.
The rear wheel was perfectly centered and had basically no runout.
The front wheel's hub is off-center.
Now, it's off-center, but it's not really off-center—if you know what I mean.
It's a partial centering issue that will disappear on its own once you dial in the truing.
If you applied a gauge at every possible angle and got this result, it would mean the rim is generally misaligned. But that's not what's happening here.
If it were just a simple truing job, that would be easy work, but
there were multiple spokes that were twisted.
This happens when you turn the spoke nipples without using a spoke wrench—but since the customer might be the one who did it, I won't be too harsh about it.
For example, this spoke is oriented correctly at the hub end—
but twisted at the rim end.
If I call that a 90° twist, there were 7 or 8 spokes with twists up to 90°, and one spoke with a 180° twist. None of them had permanent deformation, so I was able to straighten them all out without replacing any spokes.
Once I trued the wheel, the centering sorted itself out automatically.
They requested truing. And sure enough, the front wheel had some obvious runout that was visible even without putting it in a truing stand.
The rear wheel was perfectly centered and had basically no runout.
The front wheel's hub is off-center.
Now, it's off-center, but it's not really off-center—if you know what I mean.
It's a partial centering issue that will disappear on its own once you dial in the truing.
If you applied a gauge at every possible angle and got this result, it would mean the rim is generally misaligned. But that's not what's happening here.
If it were just a simple truing job, that would be easy work, but
there were multiple spokes that were twisted.
This happens when you turn the spoke nipples without using a spoke wrench—but since the customer might be the one who did it, I won't be too harsh about it.
For example, this spoke is oriented correctly at the hub end—
but twisted at the rim end.
If I call that a 90° twist, there were 7 or 8 spokes with twists up to 90°, and one spoke with a 180° twist. None of them had permanent deformation, so I was able to straighten them all out without replacing any spokes.
Once I trued the wheel, the centering sorted itself out automatically.