
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
- Bottom Bracket Shell I.D.: 1.37
- BB/Frame Interface: English
- BB Shell Width (mm): 68
- BB Shell Width (mm): 73
- Weight: 105
- Spindle Interface Type: RaceFace/Easton CINCH
- Defined Color: Black
