Origin8 propulsion track hubs are just relabled formula SH51's if I remember.
267mm or 268mm spoke will work, though you'd be better off with a 268mm. Also order a few extra spokes than you need, in the case you mess up a spoke and they come useful when fishing the spoke nipples through the rim.
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Appreciate the old bikes more than the new.
Last edited by Dannihilator; 12-23-12 at 11:01 PM.