Another wheel day (and so on).
I built a front wheel today
using Light Bicycle's
ultra-lightweight holeless rim with no holes except for the valve hole on the outer edge.
ExtraLight Cyber Front SPC 3+
Front hub, 24H, all-black CX-RAY
2-cross laced on both sides.
The ExtraLight front hub has
all the logos on the hub shell facing backward.
Since "Cyber Front" is where the hub model name ends,
I used to write "built a front wheel with the Cyber Front front hub"
for rim brake hubs,
but this hub is the
Cyber Front SPC 3+ model.
SP stands for straight-pull design, and
in the case of 6-hole rotor mounts,
it was SPC with a D added for disk,
but later, when the Center Lock mount version came out,
they added a C to make it SPC—that's the naming convention.
As for the "3+", I'm not sure what it means,
but it used to be just "3" not long ago,
so there may have been some minor update.
↑This is from a past post (→here)
—a Cyber Front front hub laced tangent on both sides for rim brakes,
but ExtraLight seems particular about
the hub shell orientation being reversed,
and they even include instructions saying "put this side on the left."
For spoke-nipple hubs and
straight-pull radial-laced hubs, there's no performance reason for orientation specs,
but if the hub in the image above were Italian-laced or
reverse-Italian-laced, then
the orientation spec would have meaning.
In reality, it's reverse-JIS lacing
(interpreting the outer spokes as inpokes),
and even if the hub's left and right are swapped,
the spoke head position relationships don't change,
so there's a performance reason
for specifying left and right.
Light Bicycle rims often seem to come
from OEM suppliers or users buying directly from the manufacturer
with unbranded specs specified,
but this rim had
a logo etched in by laser engraving.
I built a front wheel today
using Light Bicycle's
ultra-lightweight holeless rim with no holes except for the valve hole on the outer edge.
ExtraLight Cyber Front SPC 3+
Front hub, 24H, all-black CX-RAY
2-cross laced on both sides.
The ExtraLight front hub has
all the logos on the hub shell facing backward.
Since "Cyber Front" is where the hub model name ends,
I used to write "built a front wheel with the Cyber Front front hub"
for rim brake hubs,
but this hub is the
Cyber Front SPC 3+ model.
SP stands for straight-pull design, and
in the case of 6-hole rotor mounts,
it was SPC with a D added for disk,
but later, when the Center Lock mount version came out,
they added a C to make it SPC—that's the naming convention.
As for the "3+", I'm not sure what it means,
but it used to be just "3" not long ago,
so there may have been some minor update.
↑This is from a past post (→here)
—a Cyber Front front hub laced tangent on both sides for rim brakes,
but ExtraLight seems particular about
the hub shell orientation being reversed,
and they even include instructions saying "put this side on the left."
For spoke-nipple hubs and
straight-pull radial-laced hubs, there's no performance reason for orientation specs,
but if the hub in the image above were Italian-laced or
reverse-Italian-laced, then
the orientation spec would have meaning.
In reality, it's reverse-JIS lacing
(interpreting the outer spokes as inpokes),
and even if the hub's left and right are swapped,
the spoke head position relationships don't change,
so there's a performance reason
for specifying left and right.
Light Bicycle rims often seem to come
from OEM suppliers or users buying directly from the manufacturer
with unbranded specs specified,
but this rim had
a logo etched in by laser engraving.