Complete set of high-speed ball bearings for XII are used through the entire drivetrain for optimum drivetrain effectiveness. All ball-bearings have actually the greatest threshold and offer maximum performance. Ball-bearings the steering system are gently oiled with Aero Shell® Fluid 12 for optimum smoothness and longevity. Highest-quality, individually calculated, selected and inspected bearings manufactured centered on XRAY’s greatest tolerance specifications.