9.3 average score from 28 reviews

BottomBear BB30

Model number: BBO-19
  • Universal BB30 Bottom bracket set for 30mm spindles
  • Chrome steel BB30 bearings
  • Inner diameter of 30 mm and outer diameter of 41,96 mm
  • Co-molded bearing shields
  • Wave washer included
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BottomBear BB30 Bottom Bracket

There is no better feeling than a smooth rolling bike. A bottom bracket is one of the most important parts to keep your bike smooth and silent. The BottomBear BB30 is a high-end bottom bracket. Durable, high-end materials are used to keep your bike rolling forever!


  • Bracket Shell type BB30 - Direct fit 30
  • Bracket spindle diameter (mm) 30
  • Bearings material CrMo
  • Amount (pieces) 2
  • Bracket Shell width (mm) 68, 73mm


  • Weight (g) 63