Some are so bad you can't actually fit a BB in them in the first place. Hambini also makes custom BBs to compensate for terrible manufacturing and companies like Boardman who refuse a warranty claim on a brand new frame with BB shell that was undersized, oval and forward/back and high/low out of alignment.
Some are so bad you can't actually fit a BB in them in the first place. Hambini also makes custom BBs to compensate for terrible manufacturing and companies like Boardman who refuse a warranty claim on a brand new frame with BB shell that was undersized, oval and forward/back and high/low out of alignment.