CeramicSpeed BB30 SRAM DUB Coated MTB Bottom Bracket Black

The CeramicSpeed BB30 SRAM DUB Coated bottom bracket is specially developed for off-road performance. The bearings offer extreme durability and high performance efficiency and are developed specifically for DUB 28.99 spindle. 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.CeramicSpeed coated products provide the ultimate in performance and longevity gains. The patented coating features several attributes that enhance the longevity of CeramicSpeed bearings. The increased hardness of the strokes, combined with the smoothness of the ceramic speed balls, produces virtually no wear on the bearing. The coating is a metallic layer, which is 75% harder than hardened steel tracks. The coating is applied in a very thin and uniform layer of 3 microns (0.