• The 120mm is 43.5mm for freewheel and 42mm for fixed. The 130mm and 135mm are both 53.5mm for freewheel or 52mm for fixed, no? I don’t know if you have hubs in hand but that’s what surly’s documentation describes as far as I understand.

    Edit: I may admit I may be wrong. Surly’s documentation says there are two chainlines for their hubs. Forums seem to show they’re more.

  • I have both hubs in hand, flanges/threading are wider on the 135mm; got a link to that document?

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