I've got a miche primato bottom bracket and sugino 75 crankset being mailed to me right now. Will they work together or should i invest in a sugino bb? Any info is appreciated..

nope differen't tapers the miche is italian aka only campy, pauls, and miche should go on it. shimano,sugino,etc will work for the sugino's. you could still run the 75's on the bottom bracket but it may cause problems down the road.

Kozo Sugino emailed a forum member to confirm that 75's are iso tapered (see 1st post in linked thread). Should be fine, if the primatos are in fact iso.

https://www.bikeforums.net/singlespeed-fixed-gear/279209-sugino-75-iso-just-clarify.html