Cheap And Discounts 6800RS Hybrid Ceramic Bearing 10*19*5 mm ABEC-5 ( 1 PC ) Bicycle Bottom Brackets Spares 6800 RS 2RS Si3N4 Ball Bearings 6800-2RS Wholesale. Buy Directly From Merchant Explorer Pro Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.