Promax EX-1 Alloy external Sealed Bottom Bracket
Promax - Black
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 Bore: 24mm 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 mm , 68 mm , 68 mm , 68 mm , 68 mm , 73 mm BB Style: Euro Defined Color: Black-Gold BB/Frame Interface: English Weight: 102.9 g , 102.9 g , 102.9 g , 102.9 g , 102.9 g