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Promax - EX-1 Bottom Bracket (BMX)

Product Code: promax-ex-1-bottom-bracket-bmx
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 Promax - EX-1 Bottom Bracket (BMX)

  • EX-1 External bottom brackets feature cold-forged and CNC-machined alloy cups, dual-labyrinth bearing covers and precision sealed bearings
  • They are the perfect match to Promax CF-2 and HF-2 cranks and ultimate upgrade to the budget BBs sold with most crank sets