Today it's wheels again (and so on).
Continuing from yesterday.
The rear wheel also needed to be rebuilt.
The hub rotation feels a bit rough,
but the bearings aren't damaged
to a critical degree.
I had built it in a semi-competition (half-comp) pattern with 32 spokes,
but apparently the rear derailleur
interferes with the spokes when shifting to the lowest gear.
So I suggested to the customer that we change
the free side to CX Sprint (half-CX Sprint pattern)
and rebuild it, but
when rebuilding, we switched to a Revo Disc hub,
so I reused the spokes and kept it in the semi-competition pattern.
I'd never heard of derailleur interference issues
with Revo Disc hubs.
We removed the wiring from the CX-RAY sections on both wheels
and reused them, then re-wired them.
I forgot to take the usual close-up shot of the hub.
The customer also brought in the bike that these wheels will be installed on,
so I installed the same tires, sprockets, and rotors as before
and checked for spoke interference.
The rear derailleur and spoke contact was probably
not on small chainring × lowest gear, but likely on large chainring × lowest,
but in either case there's plenty of clearance
between the derailleur pulley cage and the spokes.
I didn't touch any of the set screws that limit the derailleur's range of motion.
Since the rear hub changed,
the freebody's lateral position might have shifted,
but no shifting adjustment was needed.
↑This is comparing the right flange position
of the Growtac rear hub from this job
and the Revo Disc rear hub,
placed flat with the right end down,
from another customer on consignment,
and the Growtac hub's
right flange is clearly more outboard.
Furthermore, the outside of the flange has a slight taper,
and with these conditions compounded,
when building the free side of this hub in a 4-spoke comp pattern,
the spacing between the rear derailleur and spokes is barely adequate in large × low,
and when doing things like standing climbs from there,
this interference problem might occur.
When building a rear wheel with this hub,
it will probably need to be half-CX Sprint
rather than semi-competition.
I really dislike that the Growtac front hub is reverse hi-lo flanges,
but according to something a customer told me,
the reason is apparently "to make spoke lengths the same left and right."
Which means they're only considering
same-side-same-spoke patterns like 4-4 (4x4),
and from the rear hub's right flange dimensions and shape,
they don't seem to be considering left-right asymmetrical patterns like semi-comp,
so I think it's just a design for boring wheels—
either all CX-RAY or all Aero Lite, 4-4 for 24H, or 6-6 for 28H.
But I'll still do asymmetrical mixed spoke patterns anyway.
There's a groove cut into the freebody recess,
and a split washer is installed as a hub component—
this is called a "sprocket stabilizing ring,"
and regardless of its effectiveness, in terms of dimensions,
the sprocket position on the Growtac hub including this washer
and the sprocket position on the Revo Disc hub
were the same to the degree that no shifting position adjustment
was needed with Shimano 11-speed electronic components.
What I'm trying to say is,
if the Revo Disc hub had the sprocket position more outboard
and that required shifting adjustment or
adjustment of the derailleur's set screws,
the interference problem between derailleur and spokes
would have improved somewhat,
but since we actually didn't touch any of those,
the interference problem comes down solely to
the Growtac hub's right flange dimensions.
However, in this case,
the customer's bike has Shimano 11-speed components,
sprockets only are SRAM 11-speed for HG freebody,
and the lowest gear is 28T, which are unfavorable conditions for interference,
and if it were changed to 34T (the chain length would also change),
I think interference would be less likely to occur.
Continuing from yesterday.
The rear wheel also needed to be rebuilt.
The hub rotation feels a bit rough,
but the bearings aren't damaged
to a critical degree.
I had built it in a semi-competition (half-comp) pattern with 32 spokes,
but apparently the rear derailleur
interferes with the spokes when shifting to the lowest gear.
So I suggested to the customer that we change
the free side to CX Sprint (half-CX Sprint pattern)
and rebuild it, but
when rebuilding, we switched to a Revo Disc hub,
so I reused the spokes and kept it in the semi-competition pattern.
I'd never heard of derailleur interference issues
with Revo Disc hubs.
We removed the wiring from the CX-RAY sections on both wheels
and reused them, then re-wired them.
I forgot to take the usual close-up shot of the hub.
The customer also brought in the bike that these wheels will be installed on,
so I installed the same tires, sprockets, and rotors as before
and checked for spoke interference.
The rear derailleur and spoke contact was probably
not on small chainring × lowest gear, but likely on large chainring × lowest,
but in either case there's plenty of clearance
between the derailleur pulley cage and the spokes.
I didn't touch any of the set screws that limit the derailleur's range of motion.
Since the rear hub changed,
the freebody's lateral position might have shifted,
but no shifting adjustment was needed.
↑This is comparing the right flange position
of the Growtac rear hub from this job
and the Revo Disc rear hub,
placed flat with the right end down,
from another customer on consignment,
and the Growtac hub's
right flange is clearly more outboard.
Furthermore, the outside of the flange has a slight taper,
and with these conditions compounded,
when building the free side of this hub in a 4-spoke comp pattern,
the spacing between the rear derailleur and spokes is barely adequate in large × low,
and when doing things like standing climbs from there,
this interference problem might occur.
When building a rear wheel with this hub,
it will probably need to be half-CX Sprint
rather than semi-competition.
I really dislike that the Growtac front hub is reverse hi-lo flanges,
but according to something a customer told me,
the reason is apparently "to make spoke lengths the same left and right."
Which means they're only considering
same-side-same-spoke patterns like 4-4 (4x4),
and from the rear hub's right flange dimensions and shape,
they don't seem to be considering left-right asymmetrical patterns like semi-comp,
so I think it's just a design for boring wheels—
either all CX-RAY or all Aero Lite, 4-4 for 24H, or 6-6 for 28H.
But I'll still do asymmetrical mixed spoke patterns anyway.
There's a groove cut into the freebody recess,
and a split washer is installed as a hub component—
this is called a "sprocket stabilizing ring,"
and regardless of its effectiveness, in terms of dimensions,
the sprocket position on the Growtac hub including this washer
and the sprocket position on the Revo Disc hub
were the same to the degree that no shifting position adjustment
was needed with Shimano 11-speed electronic components.
What I'm trying to say is,
if the Revo Disc hub had the sprocket position more outboard
and that required shifting adjustment or
adjustment of the derailleur's set screws,
the interference problem between derailleur and spokes
would have improved somewhat,
but since we actually didn't touch any of those,
the interference problem comes down solely to
the Growtac hub's right flange dimensions.
However, in this case,
the customer's bike has Shimano 11-speed components,
sprockets only are SRAM 11-speed for HG freebody,
and the lowest gear is 28T, which are unfavorable conditions for interference,
and if it were changed to 34T (the chain length would also change),
I think interference would be less likely to occur.