These bottom brackets are equipped with hand built coated bearings specially developed for off-road performance that offer extreme durability and feature a unique design for SRAM DUB 28.99 cranks.
Coated bearings utilize the highest quality CeramicSpeed ceramic balls, running on hardened-steel races with a 3-micron thick metallic coating making the races corrosion resistant, harder and smoother, increasing service life and reducing friction.