This suits all GXP format SRAM & Truvativ Cranksets, including the SRAM Omnium

Giga X Pipe (GXP)- An external bearing system with 3D forged, heat treated and CNC'd 24mm OD CroMoly spindle integrated with right crank arm; custom cartridge bearings with eight seals and CNC'd alloy cups.

SPECS
Weight: 103g
Bottom Bracket: BSA / English
Spindle Interface Type: Truvativ GXP
Suits: 73 & 68mm Bottom Bracket Shells