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Looks like Sugino have changed things up since I bought my cranks in 2007, so I owe you an apology... Have they changed the taper since 2007? Sugino used to advise the use of an ISO BB, we went over it all on this very forum countless times... Also NJS = ISO... Those fancy cartridge Sugino BBs weren't available BITD, my S75 BB was a loose bearing thing that I was afraid to take out in the rain... 111mm ISO Campag Chorus was the favoured upgrade...
But your cranks are ISO... Don't listen to that twit who insists Sugino 75s have a proprietary taper, absolute rubbish...