• SRX ISIS

• CNC machined, heat treated, hollow chromoly M15 spindle.

• Shot peened finish for fatigue strength.

• Forged & CNC’d aluminum cups & reinforcing sleeve.

• Single row, full-ball, sealed cartridge bearings.

• Low friction labyrinth spindle seal keeps out contaminants & increases bearing life.

• Newly improved extreme conditions bearing grease.

• 64 ball bearings in each bottom bracket.

• Fixed cup spacer (2.5mm) allows BB to be used with either 68 or 73mm shells.

• Fixed cup on drive side.

• Proprietary non-side loading design.