I've taken in a Racing Zero Night (high-end carbon road bike) from a customer.
It's brand new, never ridden.
I forgot to take a full shot of the rear wheel.
But I did capture the important details.
The front wheel was perfectly centered, and the rear wheel was only very slightly off-center.
There was barely any runout on either wheel.
It seemed like it had been inspected somewhere before, but
since the customer is someone I know, that's unlikely to be the case.
Carefully peeling off the warning sticker in the brake zone
and then neatly reapplying it after inspection... that's basically impossible in practice.
The rear wheel's slight centering issue was the rim drifting toward the freewheel side.
The image above shows the rear wheel before inspection, and
when people write things like "the thickness of a piece of paper," they're referring to this kind of state.
The borderline centering deviation that my centering gauge can detect is around this amount.
Half of that and it would probably be judged as "centered."
With cheap gauges, wheels that are off by twice this amount
still get rated as "centered."
It's brand new, never ridden.
I forgot to take a full shot of the rear wheel.
But I did capture the important details.
The front wheel was perfectly centered, and the rear wheel was only very slightly off-center.
There was barely any runout on either wheel.
It seemed like it had been inspected somewhere before, but
since the customer is someone I know, that's unlikely to be the case.
Carefully peeling off the warning sticker in the brake zone
and then neatly reapplying it after inspection... that's basically impossible in practice.
The rear wheel's slight centering issue was the rim drifting toward the freewheel side.
The image above shows the rear wheel before inspection, and
when people write things like "the thickness of a piece of paper," they're referring to this kind of state.
The borderline centering deviation that my centering gauge can detect is around this amount.
Half of that and it would probably be judged as "centered."
With cheap gauges, wheels that are off by twice this amount
still get rated as "centered."