Shimano SM-BB80 Saint Hollowtech II Bottom Bracket (73-mm BSA)
This post contains affiliate links. As an Amazon Associate I earn from qualifying purchases Shimano Hollowtech II external bearing bottom brackets with non-replaceable bearings. Designed for Hollowtech II MTB crank sets. Product Features Labyrinth seals for durability in wet conditions Shimano Reference Number: SM-BB80 This post contains affiliate links. As an Amazon Associate I earn