Promax EX-2 External Bottom Bracket
$94.99
PRODUCT INFO
The Promax EX-2 external bottom bracket suits 30mm spindle cranks, like those found on the Promax CK-1 Carbon cranks.
The benefit of external bearings is to create a larger bearing that can cope with the pressure that is placed through them by higher loads and torque.
- 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 / Promax CK-1 cranks
- BB Shell Width: 68 , 73mm
- Bottom Bracket Shell I.D.: 1.37
- BB/Frame Interface: English (Threaded)
- Weight: 105 grams
See more products by BOX Components
