Box Two Alloy External Sealed Bottom Bracket Description:
External Euro bottom bracket kit with very smooth, high quality sealed bearings.
- Box Two External bottom brackets feature cold-forged
- 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
- Shell Width: 68/73mm
- Spindle Type: 24mm
- Thread: 1.37" x 24 TPI
- Weight: 105 g / 3.7oz
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This product was added to our catalog on February 21, 2020