SHIMANO UN55 BB Square Taper Bottom Bracket Review

Posted by October 1, 2018 in Drivetrain Components

SHIMANO UN55 BB Square Taper Bottom Bracket

  • Bottom Bracket Fit – 68mm BSA of ENG
  • Sealed cartridge bearings

The Shimano BB-UN54/55 Square Taper bicycle bottom bracket gives you reliable strength for square tapered cranksets.

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