EX-2 Bottom Bracket - 30mm, Black Battery mounts & holders And so is functionality

And so is functionality

This also allows a lot of freedom in design

A tight and consistent 13-tooth gap between chainrings makes for accurate and dependable shifting

and damage from crowded bike racks

Get stamina feature insights while you ride

EX-2 Bottom Bracket - 30mm, Black Battery mounts & holders And so is functionalityThe 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