Guys, need support, I try to install the Cema T47 bottom bracket that LightCarbon offers. I can’t get either cup to start threading by hand at all — it just keeps turning without engaging and falls straight back out. Cup on the drive side, counterclockwise. Cup with the center sleeve on the non-drive side, clockwise, correct? What could go wrong?
the CEMA BB has directional marks on all parts. hard to get it wrong unless you accidentally interchanged L and R. always gently screw it in by hand first.
I ordered the ceramic CEMA (thought i try ceramic once again). took me 2 aproached with this thing to get dub wide chain line spacing sort of right.
after a few km i wanted to try different crankset. but ceramics bearings didn't survive a really really mild hit with my rubber hammer onto the spindle

anyone got long term experience with the CEMA ceramic bearing? can't believe it is that fragile