Originally Posted by
hybridbkrdr
I don't know if Shimano bottom brackets are compatible with your cranks. I say this because people talking about FSA cranksets said it took FSA bottom brackets.......Usually, square taper bottom brackets are compatible with all square taper cranks.
There are two different square taper bottom bracket configurations, JIS and ISO. They are very similar and have identical 4° taper angles but ISO is slightly smaller at the start of the taper. So, theoretically an ISO crank won't go far enough up a JIS taper and a JIS crank will go too far up an ISO taper.
Shimano, Sun Tour, SR, most Suguino and most other Japanese cranks are JIS. Campy, other European and a few Suguino cranks are ISO.
As to FSA, if they are square taper they should fit a Shimano square taper bottom bracket. If they are ISIS, they are completely different.