The Enduro Bearings ITA30 - BB - XD15 Pro - 30mm is a high-quality bearing bottom bracket specifically designed for Italian-threaded framesets and 30mm cranksets. This top-of-the-line bearing kit from Enduro Bearings features XD-15 Ceramic-Hybrid, ABEC-5 bearings that are designed to provide exceptional performance and longevity.Our XD-15 Ceramic-Hybrid bearings are made from corrosion-proof, cryogenically treated nitrogen steel races and Silicon Nitride Grade 3 ceramic balls. This proprietary process results in the ultimate high-performance bearing setup. The deep-groove design raceways allow for maximum-sized Grade 3 Silicon Nitride ceramic balls, which increases contact area and enhances performance.The XD-15 bearings are lubricated with 90% fill Kluber NBU52 grease, which not only runs better and smoother with time but is also highly resistant to being washed out. This specially engineered grease sticks to the balls and continually gets pulled back into the ball path where it is needed.One of the most impressive features of XD-15 bearings is that they actually get better with use. As the bearings wear-in, the balls make the races even smoother. This means that compared to other ceramic-hybrid bearings on the market, which claim speed and power advantages on day one, Enduro XD-15 bearings not only provide the same initial advantages on day one but also improve over time and use.We are so confident in the quality of our XD-15 bearings that we offer an unlimited lifetime warranty on both the bearings and races.Please note that the special 6806/29 bearing included in this kit is specifically designed for SRAM Dub cranksets. Enduro Bearings offers other kits for cranksets with 30mm spindles.For easy removal and installation of this bearing kit, we recommend using the BRT-002 (EB8190) 30mm x 42mm bearing tool with the BRT-016 (EB9651) DUB add-on kit. This tool combination allows for quick removal and installation of bearings with just a few twists of the wrist while the bottom bracket is still on the bike.Shell Fitment: ITA30Bearings: XD-15 CeramicSeal Type: LLBGrease: Kluber NBU52 GreaseAxle Size: 30mmWarranty: Unlimited LifetimeEnduro Reference Number: BKC-0808