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
