Nomu Lab Diary

Built a front wheel with the 25 rim (final version)

Wheel building again today (and so on).
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Here we have an ENVE 25, what's called a Classic 25 rim these days.
The 45 and 65 come in two types: lightweight "1" and durable "2" (※)
and the rim markings show "1.45" and such,

※a euphemism for "heavy"

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The 25 has no "2" variant, so
you don't see a "1.25" marking.
The "20" in "25-20" refers to the number of spoke holes.
The serial numbers are 1.42 and 1.44 million—7 digits.
From EDGE through ENVE, the published weight of the 25 rim
evolved as 195g → 215g → 250g,
but then at the very end it became 274g, and from the serial number
this is the final version. In other words, this rim falls into the heavier category for this model.

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It comes in under the published spec, so among this generation it's still a relatively light example.

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I built the front wheel with the 264g one.

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Leaf hub 20H black CX-RAY outpoke radial laced.

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Even so, it's lighter than an SES 3.4 front WO rim by itself.

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These are my personal rims, so it's fine to show the serial numbers.
The 45 from the 5-digit era doesn't have a "1.45" marking, so
there probably wasn't a "2" variant back then.
The actual measured weights are 194g, 291g, and 308g from the images,
and 291g is quite heavy for a 5-digit 45.
The average would be around 278g.

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This is also one of mine, but
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it has the original generation EDGE label and
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it's hard to see, but it's a 5-digit number in the 90,000 range, with rim cement bedding present
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and here's the actual measured weight.
The hub is 24H, so it's a 24H rim, but
if it were 20H instead, we'd lose about 18.8g from spokes
and about 1.3g from nipples,
so it would be roughly 20g lighter overall.

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