A customer brought in a Cosmic Carbon 40 in tubular specification for work.
The front wheel had a slight runout with kind of a bang to it,
but aside from that it was pretty much true.
In other words, it would pass Mavic's inspection.
For a front wheel, that's some serious lateral runout.
Fixed it.
The hub cone adjustment had play in it, so I removed that.
The bearing rotation was smooth.
The rim is an Equinox WH130 model.
I touched on this sort of thing before with a different Cosmic Carbon,
but back then I got chased by the thought police and had a rough time (self-inflicted).
These days, it seems the readers of this blog don't get spooked over this level of disclosure anymore—quite a change from those days.
Nomu Lab Wheel No. 3 (→here)
Cosmic Carbon 80 rim rear wheel (→here)
The upshot of that (→here)
A similar story from a different case (→here)
The rear hub rotation was murky.
I can't tell if it's ceramic or steel bearings,
but the non-contact bearings that were specially swapped in seem to have died.
When I told the customer, they said it was okay to replace them, so
I removed them. They're Tni ceramic bearings.
Tni logo on the outer ring outer circumference, ceramic marking on the inside of the inner ring.
The freewheel side has a contact-type sealed steel ball bearing,
and I swapped the non-freewheel side to a non-contact sealed steel ball bearing.
I have contact-type bearings in stock for the non-freewheel side too,
but after consulting with the customer, we went with this spec.
For Mavic, this isn't off at all.
All fixed.
The front wheel had a slight runout with kind of a bang to it,
but aside from that it was pretty much true.
In other words, it would pass Mavic's inspection.
For a front wheel, that's some serious lateral runout.
Fixed it.
The hub cone adjustment had play in it, so I removed that.
The bearing rotation was smooth.
The rim is an Equinox WH130 model.
I touched on this sort of thing before with a different Cosmic Carbon,
but back then I got chased by the thought police and had a rough time (self-inflicted).
These days, it seems the readers of this blog don't get spooked over this level of disclosure anymore—quite a change from those days.
Nomu Lab Wheel No. 3 (→here)
Cosmic Carbon 80 rim rear wheel (→here)
The upshot of that (→here)
A similar story from a different case (→here)
The rear hub rotation was murky.
I can't tell if it's ceramic or steel bearings,
but the non-contact bearings that were specially swapped in seem to have died.
When I told the customer, they said it was okay to replace them, so
I removed them. They're Tni ceramic bearings.
Tni logo on the outer ring outer circumference, ceramic marking on the inside of the inner ring.
The freewheel side has a contact-type sealed steel ball bearing,
and I swapped the non-freewheel side to a non-contact sealed steel ball bearing.
I have contact-type bearings in stock for the non-freewheel side too,
but after consulting with the customer, we went with this spec.
For Mavic, this isn't off at all.
All fixed.