Blackbearing 46-79/Dub B5 Bottom Bracket

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.

We ship across India. Shipping is free on orders above ₹2,000, and ₹99 is charged on orders below ₹2,000. Cash on Delivery is available for orders up to ₹20,000, with additional COD charges based on order value. Most orders are delivered within 3–6 working days, though delays may occasionally occur. Please note that most Shimano products may take longer to ship. View full shipping policy.

Returns can be initiated within 7 days of delivery. Items must be unused, in original condition, and returned with all tags and packaging intact. Returns are available only on select categories such as apparel, helmets, jerseys, gloves, and similar items. Wetsuits and products discounted above 5% are not eligible for return.

Returns are not accepted for compatibility-related issues unless the product description on our website was incorrect. Return shipping must be arranged by the customer, as pickup is not available.

For eligible returns, you can choose an exchange, store credit, or a monetary refund. Refunds are processed after deduction of applicable shipping and transaction charges. Order cancellations are only possible before the order is processed. View full Return & Refund Policy.