Originally Posted by
DaveSSS
Try wheels manufacturing. They make thread together BBs for many combinations. I have BB86 and 386 frames and use Shimano GRX cranks. They don't seem to make a 386 with angular contact bearings, which is what I prefer.
https://wheelsmfg.com/386evo-abec-3-bb-black.html
That linked product is for the wrong frame
and wrong spindle (sorry that was your spindle I was thinking of) from what the OP is after though?
I haven’t used that FSA BB but their stuff is generally good and I can’t see it being a problem for the usage described.
Though - Don’t the 30mm spindles end up with pretty thin bearings in a shell designed for 24mm? I remember someone made one with dual bearings on both sides to extend the bearing life. Looking at that diagram again, looks like they have double races on this one in fact. For recreational use maybe ok but I’d be tempted to change crank.