- 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
- BB SET BOX OUTBOARD TWO ENG 30mm BK ALY 68/73 w/SEALED BRNG BK
Center: ENG
Right: Box/Praxis 30mm
Overall Length: 6061-T6
