Extreme BB Ultra

The dual-bearing design can handle greater forces and provides both smoothness and durability. Made of stainless steel, it offers better hardness and weather resistance. Additionally, the contact seal efficiently prevents water from entering, prolonging the lifespan of the bearing.

This technology incorporates ceramic beads with low resistance that are immune to rust, deformation, and bonded with nano grease. These features provide the benefits of reduced resistance, faster running speeds, and exceptional water resistance, surpassing the performance of conventional steel balls.