If you have English (ISO or B.S.A.) thread b/b the outer cup diameter will be 34.6-34.9mm and inner diameter will be 33.6-33.9mm. Shell width will be 68mm or 73mm. It will also have a left hand thread on the drive side.
If you have Italian thread b/b the outer cup diameter will be 35.6-35.9mm and the inner diameter will be 34.6-34.9mm. She'l width will be 70mm. It will also have right hand thread on both sides.
left wondering what cranksets work with an Eng thread BB..
English thread bottom bracket
left wondering what cranksets work with an Eng thread BB..