Premium Enduro Ceramic Hybrid 6806 LLB Sealed Cartridge Bearings Set of 2 (30x42x7mm) Upgrade your bicycle’s performance with our high-precision Enduro Ceramic Hybrid 6806 LLB Sealed Cartridge Bearings. Crafted for durability and smooth operation, these bearings feature advanced materials and engineering technologies designed to optimize your bikes efficiency and longevity. Perfect for mountain biking, enduro, and high-performance cycling, this set offers superior reliability and reduced friction for a seamless riding experience. Materials & Construction: Optimized with Silicon Nitride Grade 5 (Si3N4) ceramic balls for lightweight strength and superior wear resistance, combined with 52100 high-carbon chromium alloy races that receive three cryogenic treatments for enhanced hardness and stability. The bearings are sealed with robust LLB type 2-lip low-contact Nitrile Butadiene rubber labyrinth seals, providing excellent protection against dirt, water, and debris. Performance & Engineering: Designed with ABEC-5 tolerances for precision and smooth rotation, these hybrid bearings minimize friction and improve power transfer. The inclusion of realube special ceramic-grade 374 grease ensures long-lasting lubrication and consistent performance in demanding riding conditions. The nylon/graphite retainer further enhances service life and reduces operating noise. Components & Technology: Featuring cryogenically treated steel races and high-grade silicon nitride ceramic balls, this bearing set delivers lightweight attributes combined with exceptional durability. Suitable for various bicycle components, including hubs, bottom brackets, and cranksets, these bearings ensure optimal fit and function. Style & Use Case: Ideal for riders seeking high-performance upgrades for aggressive trail, enduro, and downhill cycling, these sealed cartridge bearings are engineered to withstand tough conditions while providing maximum efficiency. Their compact size (30mm I.D., 42mm O.D., 7mm thickness) makes them versatile for multiple bike models and assemblies. Enhance your bikes reliability and riding experience with the Enduro Ceramic Hybrid 6806 LLB Sealed Cartridge Bearings the perfect upgrade for serious cyclists demanding precision, durability, and performance.