• ah yes I guess the frame spacing is relevant (though not sure what OLD stands for?).

    I measured the frame it measures 123mm, so I guess its a 120mm -with 1.5mm either side that would nip up when tightening. (it is a 1980 Peugout, it was 10 speed so 120mm would make sense). likewise if I build the wheel at 125 it would 'fit' .

    I just want to get the cog lined up in a sensible place, then build & dish the wheel to suit.

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