9.3 average score from 28 reviews

BottomAdapt BB386/392 EVO

Model number: BBO-17
  • 30 mm to 24 mm reducer, for BB386/392 EVO
  • Allows the installation of 24 mm spindle crank sets into a BB386 EVO shell (PF30/BB386 EVO BB required, not included)
  • Alloy spacer with plastic cover
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BottomAdapt BB386/392 EVO Bottom Bracket

Give yourself more freedom of choice in cranks with the BottomAdapt BB30/PF30 EVO. Make the change, but keep the same smoothness as you've always had with this adapter. The BottomAdapt is strong and keeps your crank perfectly straight to avoid wear. Spacers included.


  • Bracket Shell type BB386, BB392
  • Bracket spindle diameter (mm) 24
  • Bracket Shell width (mm) 86,5mm, 89,5mm, 92mm


  • Weight (g) 13