The Enduro Bearings BB30 TorqTite XD-15 Ceramic Bottom Bracket 30mm is a top choice for cyclists seeking durability and performance. This bottom bracket is designed for BB30 framesets and 30mm cranksets, offering a seamless fit and enhanced riding experience. Enduro Bearings has crafted the Enduro Bearings BB30 TorqTite XD-15 Ceramic Bottom Bracket 30mm with XD-15 15° Angular Contact cartridge bearings. These bearings are set in precision-machined aluminium cups that thread directly into the BB shell. The XD-15 Pro bearings use deep-groove raceways and Grade 3 Silicon Nitride ceramic balls, ensuring a larger contact area for improved performance and longevity. Manufactured in California, USA, these bottom brackets combine corrosion-proof, cryogenically treated nitrogen steel races with Silicon Nitride ceramic balls. This unique process results in a high-performance bearing setup. Enduro Bearings is confident in their product, offering an unlimited lifetime warranty on both bearings and races. Unlike other bearings, the XD-15 bearings improve with use. As they wear in, the balls smooth the races further, enhancing speed and smoothness over time. This makes them a superior choice compared to other ceramic-hybrid bearings that may degrade with use. Enduro Bearings provides a wide range of bottom bracket solutions, including over 50 different types for various shell and crankset combinations. They offer threaded options for BSA, BSA 30, Italian, and the robust T47 system. For press-fit bottom brackets, they have developed the thread-together TorqTite bottom brackets and press-fit Delrin Cup options. They also offer flanged, double-row bearings for 30mm cranksets in BB86 shells. Shell Fitment: BB30 Bearings: XD-15 Ceramic Seal Type: LLB Grease: Kluber NBU52 Grease Axle Size: 30mm Warranty: Unlimited Lifetime Enduro Reference Number: BKC-0846