Replacement "Top Hat" bearing cover pair for your Monocrome External Bottom Bracket.
These can also be used to fit 6805 bearings into Trek BB90 and BB95 internal bottom brackets.
This allows greater bearing choice.
Fits BSA external MCEBB001, MCEBB101 and MCEBB201.
Fits Screw-Fit 41mm also.
This version is standard fit and may be loose or knock on worn crank spindles. It fits best with new cranks.
Tight version available here.