Bones Race Reds BearingsEach Bones Race REDS Bearings is made with upgraded top quality bearing steel, ground to perfection and polished, best for racers who use precision trucks and properly tighten their axle nuts. Precision ground 0. 200" built in spacer to provide perfect 0. 400" spacing between bearings. Precision ground extended race eliminates the need for speed washers, and provides better alignment of the bearings when the axle nut is tightened. A groove on the