Description
The Promax EX-2 English bottom bracket features forged and CNC machined aluminum cups, dual-lip labyrinth low-friction seals, and custom-sealed bearings.
- Strong, stiff, and lightweight forged and CNC-machined aluminum cups
- Dual-lip labyrinth low-friction seals keep elements out without affecting pedal efficiency
- Custom-sealed bearings are smooth and long-lasting
- For use with 30mm diameter crank spindles such as RaceFace/Easton CINCH
- BB for Promax HF-3 & CK-1
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