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Mid Bottom Bracket Shell (Internally Relieved)


CNC turned from 1.750" 4130 chromoly tubing to 73mm wide. Internally relieved for weight savings and easy tube fit up.

Sold individually.

  • 73mm with shark fin technology 9%
  • 68mm no shark fin Sold Out
  • 73mm without shark fin 100%
  • 68mm with shark fin Sold Out