Another day of wheelbuilding (and so on).
Continuing from yesterday.
The front wheel hub was a Novatech 291.
In Tni terms, that's equivalent to an Evo hub,
and the Evo Lite hub is equivalent to the 291SL.
The SL version has lightening holes further inboard from the flange holes,
and comparing the 291 to the 291SL,
the published weights of the Evo hub and Evo Lite hub are
85g and 60g respectively—a 25g difference.
Even if you gathered up all the aluminum shavings from the flange lightening,
you'd barely have the volume of a one-yen coin,
and accounting for the density difference between aluminum alloy and pure aluminum,
you'd be hard-pressed to save even 1g.
Beyond that, the other factor is that
the 291SL has a narrower hub shell, saving a few grams there,
but the majority of the weight reduction comes from
the fact that the bearing size is smaller on both sides—
those iron masses being the real culprit.
So, the rear hub I received
wasn't a 482, it was a 482SL.
The difference between the 482 and the 482SL is the lightening holes inside the flanges,
and the left end component changed from a single piece
to two parts: end + spacer.
So when using a Campagnolo freebody, you just move that spacer to the right side—
the hub weight is essentially the same.
...but that's fine,
the rim for building the rear wheel was supposed to be 24H, but
this hub was 28H—aaaaauuughhhh.
Round flange holes with previous build marks, 28H.
Our shop inventory has
a 482SL hub with slitted flange holes, 24H, brand new
with just the freebody removed,
so I built the wheel with that instead.
I'll transplant just the freebody from the hub I received.
Since you can't get the final wheel center without the freebody,
I'll need to do some adjustment later.
24H, half-comp Yonroku lacing.
Truing comes next.
Continuing from yesterday.
The front wheel hub was a Novatech 291.
In Tni terms, that's equivalent to an Evo hub,
and the Evo Lite hub is equivalent to the 291SL.
The SL version has lightening holes further inboard from the flange holes,
and comparing the 291 to the 291SL,
the published weights of the Evo hub and Evo Lite hub are
85g and 60g respectively—a 25g difference.
Even if you gathered up all the aluminum shavings from the flange lightening,
you'd barely have the volume of a one-yen coin,
and accounting for the density difference between aluminum alloy and pure aluminum,
you'd be hard-pressed to save even 1g.
Beyond that, the other factor is that
the 291SL has a narrower hub shell, saving a few grams there,
but the majority of the weight reduction comes from
the fact that the bearing size is smaller on both sides—
those iron masses being the real culprit.
So, the rear hub I received
wasn't a 482, it was a 482SL.
The difference between the 482 and the 482SL is the lightening holes inside the flanges,
and the left end component changed from a single piece
to two parts: end + spacer.
So when using a Campagnolo freebody, you just move that spacer to the right side—
the hub weight is essentially the same.
...but that's fine,
the rim for building the rear wheel was supposed to be 24H, but
this hub was 28H—aaaaauuughhhh.
Round flange holes with previous build marks, 28H.
Our shop inventory has
a 482SL hub with slitted flange holes, 24H, brand new
with just the freebody removed,
so I built the wheel with that instead.
I'll transplant just the freebody from the hub I received.
Since you can't get the final wheel center without the freebody,
I'll need to do some adjustment later.
24H, half-comp Yonroku lacing.
Truing comes next.