The Blackbearing 46-79/Dub B5 Bottom Bracket combines advanced engineering with eco-conscious design, delivering an efficient, long-lasting solution for avid cyclists. Featuring two machined aluminum cups that screw into each other, this bottom bracket ensures enhanced alignment for smooth, powerful rides.

Precision Alignment for Enhanced Fluidity: The threaded cup design enables precise alignment within the frame, minimizing strain and improving fluidity. This design reduces friction, optimizing performance and ensuring a responsive, smoother ride that holds up across varying terrains.

Eco-Responsible “BBlock” Technology: With the innovative "BBlock" technology, this bottom bracket focuses on sustainability by reducing the need for complete replacements. Designed to extend the life of your case, the only maintenance required is bearing replacement, making it a more eco-friendly choice.

Extended Bearing Life: By minimizing misalignment and wear, the bottom bracket supports longer bearing life. This extended durability provides lasting value, reducing the frequency of part replacements and maintenance costs over time.

The sturdy, aligned fit reduces the potential for cracking and frame damage, resulting in a durable solution that keeps your bike performing at its best for longer.