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
- Weight:102.9
