I have a 2025 Cervelo Caledonia 5. I have had ongoing problems specifically with the bottom bracket bearings failing prematurely. And when I say failing prematurely I mean literally every two rides the bearings would be noisy and spent. I tried the factory bottom bracket and bearings, I tried a Wheels manufacturing bottom bracket and bearings and I also tried a token bottom bracket with their more expensive ceramic bearings. All of which performed identically. Poorly. I went back and forth with the manufacturer and a tech at Cervelo many times. Surprisingly, they didn't seem to have any answers. So, out of desperation I called shirks. And after a long conversation the original individual who answered the phone put me on the phone with luis. Not sure if I'm spelling his name correctly. So after I continued long conversation Lewis suggested that I go with a one-piece bottom bracket for my Bbright frame. Which I did. And the problem went away. Apparently this bbright bottom bracket is hypersensitive to off-center loads. Therefore any thread together bottom bracket would not perfectly align the bearings with the cups and the crank spindle. So I put this one piece bottom bracket in and the problem is 100% resolved. Amazing advice!