• CNC machined, heat treated, hollow M15 chromoly spindle.
• Shot peened finish for strength.
• Forged & CNC’d aluminum cups & reinforcing sleeve.
• Single row, full-ball, sealed cartridge bearings.
• High-pressure contact lip seal in conjunction with low friction labyrinth spindle seal keeps out contaminants & increases bearing life.
• Newly improved extreme conditions bearing grease.
• Features TWO bearings on the drive side to accommodate higher drive train loads.
• 96 ball bearings in each bottom bracket.
• Fixed cup spacer (2.5mm) allows BB to be used with either 68 or 73mm shells.
• Proprietary non-side loading design.