Race Face Srx Isis Bottom Bracket

This is a Bottom Bracket with a fixed cup on drive side, single row, double sealed cartridge bearings and ISIS Drive.
It has an M15 chromoly spindle that is shot peened finish for strength, forged and CNCd aluminum cups and reinforcing sleeve.
It also has 64 ball bearings in each bottom bracket and adjustable cups that fit 68 and 73mm shells.