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BottomThread 68/73

MTB + Urban /
BottomThread 68/73


  • Oversized cartridge bearings for MTB.
  • Die cast and CNC machined external cups.
  • Composite center sleeve with double o-ring seals.
  • BSA threading: 1.37” x 24T.
  • Fits 24 mm spindle cranksets.
  • Fits 68/73 mm spindle crank sets.
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