Upgrade your stock bottom bracket with the BB386 - Ceramic Hybrid - 30mm from Enduro Bearings. Our bottom brackets are designed to spin more efficiently and last longer. The precision machined Delrin cups are lightweight and extremely durable, ensuring perfect chainset alignment. Ceramic bearings have become the standard in the cycling industry. Just like carbon fiber frames, they have revolutionized the sport. Our CH bearings are an excellent entry point into this technology. With ABEC-5 tolerances and LLB seals with Graphite Nylon retainers, our bearings offer premium features at a fraction of the cost of our competitors.The oversized Silicon Nitride Grade 5 balls and cryogenic treatment of the ABEC-5 races guarantee long-lasting and smooth rolling bearings. This bottom bracket fits BB386 frames and is suitable for chainsets with a 30mm axle. Trust Enduro Bearings for high-quality ceramic hybrid bearings that offer great value.