The shield to inner race, our bearings are 80% more reinforced than the competition;You will have longer lasting high performance bearings that will keep you rollin' smoother and longer with BSB precision technology;16 Pack;Raceways heat treated and honed for maximum speed

• Hyper BSB 72902 Ball Bearings ABEC 5 Pack of 16 Colourless
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Hyper BSB 72902 Ball Bearings ABEC 5 Pack of 16 ColourlessHyper