The angles definitely aren't that steep in the regular sizes. I would guess mine (23.5", ~58cm) is 73/73. For a bit more cash you can have custom geometry but even then they might not have lugs that work with 75° angles.
@Regal started
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The angles definitely aren't that steep in the regular sizes. I would guess mine (23.5", ~58cm) is 73/73. For a bit more cash you can have custom geometry but even then they might not have lugs that work with 75° angles.