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

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$54⁹⁹

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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

Specifications

BB Style

Euro (threaded)

Bottom Bracket Shell Width

68/73mm

Bottom Bracket/Frame Interface

English

Spindle Size

24mm

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Tree Fort ID: 333222394463

PromaxEX-1 Alloy External Sealed Bottom Bracket 68/73mm

Specifications

Customer Questions

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