Originally Posted by T Stew

Nope, BSA, but nice thing about FSA is they actually put some thought into bottom brackets and make bottom brackets to adapt to just about anything. Now I have not installed it yet (will be going into my '88 Schwinn Prologue) so I haven't confirmed fit, but I did purchase the FSA MegaEvo BB which says "MegaEvo is a threaded bottom bracket that allows the installation of a BB386EVO crankset into a standard 68mm BB shell with BSA threading." FSA MegaEvo Road - FSA

I think it'll be pretty trick to have a 30mm super light hollow carbon crank in my '88 steel Prologue lol. Many times I've heard on here you can't put a 30mm crankset on a BSA BB, but with this it appears you can.

Another thing I've found in my research... it seems like the bottom brackets for their cheaper aluminum line are known to have some issues and poorer performance, but you can use a Shimano Hollowtech II BB on 24mm FSA aluminum cranks (but not the carbon ones, I guess the shaft is a hair different even though its said to be 24mm).