Promax EX-1 Alloy external Sealed Bottom Bracket 68/73mm Red. 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
- TECH SPECS
|BB Shell Width (mm)||68|
|BB Shell Width (mm)||73|
|Bottom Bracket Shell I.D.||1.37|
|Spindle Interface Type||Shimano Hollowtech II|
|Spindle Interface Type||FSA MegaExo|
|Spindle Interface Type||FSA MegaExo Light|
|Spindle Interface Type||RaceFace EXI|
Item Specific Details
Manufacturer Part #: PX-BB13000EX-RD
Model: EX-1 Bottom Bracket
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