European Bottom Bracket Pushed Bearings

Here you can see that the right cup has bearings that have been pushed out. This is a result of too much spacing in between the bearings during installation. Bearing push creates offsets resulting in a poor overall finish and potential crank arm spacing issues throwing off chain alignment.

European Bottom Bracket Install Step 1

Euro BB, cleaned with a soft cloth. Use a cloth that will not leave lint behind. Never use a S.O.S. pad or steel wool to clean gunk out. It is much better to use a soft cloth and elbow grease to get particles out left behind form manufacture than any type of abrasive technique. You may also take your frame to a local shop to have it chased and faced if you think the BB shell is far too messy to clean up yourself. Many riders feel all frames should be chased and faced at the BB. That may very well be true. At times the paint/powder on a frame may cause the BB face to be out of plum. I have never had a frame chased or faced outside of what has been completed at the factory.