About the Original Racing 3 Spokes

A personal note.
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↑The spokes from the original Racing 3,
shown here in silver (black versions also exist).

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↑From left to right, two spokes each:
Rear left 284mm
Rear right 282mm
Front 281mm

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With 14 spokes at 281mm weighing 96.7g, the spoke mass ratio is
96.7÷14÷281÷0.0257=
0.9564427..., which equals 95.6%.

If original spokes become unavailable, as a temporary measure
a suitable substitute would be 14-gauge plain spokes (100%).
Sapim Leader and DT Champion
14-gauge plain straight spokes are both readily available.
CX-RAY (approximately 65%) and CX Sprint (approximately 78%)
have spoke mass ratios too far off,
causing deformation to not match the surrounding spokes, so they're unsuitable.

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