Description
This Item
- 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
Specifications
| Shell | 68/73mm |
|---|---|
| Interface | ENG |
| Spindle Type | Shimano HTII 24mm |
| Cup Material | 6061-T6 |
| Weight | 105g |
Manufacturer part #: BX-BB17000EX-BK · UPC: 616043825922







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