Shimano's sleek redesign for the Ultegra 6800 SM-BBR60 Bottom Bracket is lighter and faster than before, making it the ideal choice for either your English- or Italian-threaded frame. The new 6800 SM-BBR60 is close to 15 gra...

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Product Review

Shimano's sleek redesign for the Ultegra 6800 SM-BBR60 Bottom Bracket is lighter and faster than before, making it the ideal choice for either your English- or Italian-threaded frame. The new 6800 SM-BBR60 is close to 15 grams lighter than its predecessor, and the new design has reduced rotational friction by roughly 50%. This new silky-smooth ride is courtesy of steel bearings and Shimano's advanced sealing technologies.

  • Material: [cups] aluminum, [bearings] steel
  • Shell Type: external
  • Shell Width: 68 mm, 70 mm
  • Threading: English, Italian
  • Claimed Weight: 76 g