- Box Two™ External bottom brackets feature cold-forged and CNC-machined alloy cups, dual-labyrinth bearing covers and precision sealed bearings
- The perfect match to Box Three™ and Four cranks, and the ultimate upgrade to the budget BBs sold with most cranksets
- BB SET BOX OUTBOARD TWO ENG 24mm BK ALY 68/73 w/SEALED BRNG BK
Center: ENG
Right: Shimano HTII 24mm
Overall Length: 6061-T6
