Complete pair of high-speed, blue rubber-covered ball bearings for XB808 are employed through the drivetrain for maximum drivetrain effectiveness. All ball-bearings have the highest tolerance and offer maximum performance. Ball-bearings for the steering system are degreased and gently oiled with Aero Shell® Fluid 12 for optimum smoothness and long life. All drivetrain ball-bearings have a unique high-temperature resistant oil to make sure proper lubrication. Highest-quality, individually measured, selected and inspected bearings produced according to XRAYs highest tolerance requirements. Group of 24.