The Cema BB90 Hybrid Ceramic Bottom Bracket Bearings are designed to enhance your bike’s performance with superior smoothness and efficiency. These bearings combine the benefits of ceramic and steel, offering a high-performance solution for cyclists seeking optimal performance and durability.

Hybrid Ceramic Construction: Featuring hybrid ceramic bearings, these bottom bracket bearings use ceramic balls combined with steel races. The ceramic balls reduce friction and provide a smoother, faster rotation, while the steel races ensure strength and longevity, making them ideal for both road and mountain biking.

Double-Sealed for Protection: The Cema BB90 bearings come with a double-sealed design that protects the bearings from dirt, moisture, and other contaminants. This sealing ensures that your bearings remain clean and function smoothly over time, reducing maintenance and extending their lifespan.

Designed for BB90 Bottom Brackets: Specifically engineered for BB90 bottom bracket systems, these hybrid ceramic bearings fit perfectly into Trek bikes and other compatible models. Their precision design ensures efficient operation, allowing you to experience smoother pedaling and improved overall performance.

The double-sealed protection further ensures that they maintain peak performance over time, making them an excellent upgrade for cyclists looking for a long-lasting solution.