Promax EX-1 bottom bracket

$ 54.99

Promax

Only 8 left!

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
  • Bottom Bracket Shell I.D.: 1.37
  • BB Shell Width (mm): 68 , 73
  • BB/Frame Interface: English
  • Defined Color: Black
  • Weight: 102.9