Replace Bottom Bracket; Sealed vs Unsealed
I have a 20 year od Centurion that I have been commuting with the last 4 years.
I thought it would be a good idea to check the bottom bracket as it has never been repacked.
I was wondering if it would be a good idea to replace existing components with a sealed bearing set from Shimano or other.
Would I have to remove/replace the existing fixed cup?
the "windy" wheel