Promax EX-1 Alloy external Sealed Bottom Bracket 68/73mm Black

$55.00 $19.00
Availability: In stock (3)

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.

  • Fits all 24-millimeter bottom bracket spindles and frames with 68 or 73 x BC1.37” bottom bracket shells
  • Spindle Interface Type: Shimano Hollowtech II , FSA MegaExo , FSA MegaExo Light , RaceFace EXI
  • BB Shell Width (mm): 68 , 73
  • Bottom Bracket Shell I.D.: 1.37
  • Defined Color: Black
  • BB/Frame Interface: English
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