Hambini Bottom Brackets get roasted: Bottom Bracket Review and Quality Control

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This video uploaded by youtuber Peak Torque shows a Hambini BB having it’s engineering tolerances judged. Some key points

  • It’s a BB86 Shimano Racing Edition Bottom Bracket
  • The bottom bracket tolerances are accurate to 0.005mm, that is less than the diameter of a human sperm cell.
  • The eccentricity was found to be 0.010mm (0.0005inch), the recommended tolerance was 0.1mm. It was therefore 100 times more accurate than the specification allows.

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