Another wheel day (et cetera).
A customer left me a 7850 C24 rear wheel.
It has a 10-speed hub, and they want me to rebuild it with an 11-speed hub.
And incidentally, there are chain drop marks on the right hub flange.
Also incidentally,
it looks like it once had a Michelin red tire on it.
(This kind of mark is left around the valve hole)
Built it.
Equinox hub, 20H, semi-comp four-cross laced with eyelets.
Even though I didn't use different spoke patterns for left and right,
I noticed that the spoke deformation clearly has less difference between sides,
which seems to be due to the offset rim.
It's not just a feeling from my knowledge and preconceptions about offset rims and such—
there really is clearly less left-right difference.
The spokes were black before rebuild and silver after, but
that's the customer's preference.
They left me a bundle of CX-RAY spokes just in case they were usable,
but the length didn't work out.
Due to the rim hole specifications, I reused not just the rim but also the nipples.
Of the 10 spokes on the freewheel side, 4 out of the 5 outer spokes facing the non-porcupine direction
had chain drop marks.
Two adjacent spokes on the non-freewheel side had deformation.
There was noticeable runout before rebuild, and this was the cause.
(The phase of the runout matched the bent spoke)
I confirmed the rim had no warping when I disassembled it by placing it on a glass surface plate.
A customer left me a 7850 C24 rear wheel.
It has a 10-speed hub, and they want me to rebuild it with an 11-speed hub.
And incidentally, there are chain drop marks on the right hub flange.
Also incidentally,
it looks like it once had a Michelin red tire on it.
(This kind of mark is left around the valve hole)
Built it.
Equinox hub, 20H, semi-comp four-cross laced with eyelets.
Even though I didn't use different spoke patterns for left and right,
I noticed that the spoke deformation clearly has less difference between sides,
which seems to be due to the offset rim.
It's not just a feeling from my knowledge and preconceptions about offset rims and such—
there really is clearly less left-right difference.
The spokes were black before rebuild and silver after, but
that's the customer's preference.
They left me a bundle of CX-RAY spokes just in case they were usable,
but the length didn't work out.
Due to the rim hole specifications, I reused not just the rim but also the nipples.
Of the 10 spokes on the freewheel side, 4 out of the 5 outer spokes facing the non-porcupine direction
had chain drop marks.
Two adjacent spokes on the non-freewheel side had deformation.
There was noticeable runout before rebuild, and this was the cause.
(The phase of the runout matched the bent spoke)
I confirmed the rim had no warping when I disassembled it by placing it on a glass surface plate.