If you just wanted a normal cartridge-bearing square taper BB, wouldn't the good old 111mm Campag BB (e.g. the Centaur one) do the job? 7600 take the same sized BB as Sugino 75s, right?
Otherwise: https://www.lfgss.com/post3930223-716.html
See if there's an ISO option for ~2mm less than you currently use.
@Regal started
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If you just wanted a normal cartridge-bearing square taper BB, wouldn't the good old 111mm Campag BB (e.g. the Centaur one) do the job? 7600 take the same sized BB as Sugino 75s, right?
Otherwise: https://www.lfgss.com/post3930223-716.html
See if there's an ISO option for ~2mm less than you currently use.