Could it be down to the taper on the crankset? Older Miche Primato crankset used an ISO taper but the newer ones are JIS which might explain why the BB switch didn't work.
@WilliamJohn started
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Could it be down to the taper on the crankset? Older Miche Primato crankset used an ISO taper but the newer ones are JIS which might explain why the BB switch didn't work.