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Shimano 105 5800 Threaded Italian Bottom Bracket SM-BBR60


The Shimano Ultegra 6800 SM-BBR60 Bottom Bracket is available in one size for Italian (70mm) threading.

  • Around 15 grams lighter than previous version
  • Reduced rotational friction by roughly 50%
  • Steel bearings with Shimano’s advanced sealing technologies

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