Box Two Alloy External Bicycle Bottom Bracket

Battlefield Outdoors Verified independent store

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Box Two™ External bottom brackets feature cold-forged and CNC-machined alloy cups, dual-labyrinth bearing covers and precision sealed bearings Only compatible with Box One M30, Box Two M30 or Praxis M30 cranksets Product Specs Shell: 68/73mm Interface: ENG Spindle Type: Box/Praxis 30mm Cup Material: 6061-T6 Weight: 105g Show more