Blackbearing 46-79-30 B5 Bottom Bracket

The Blackbearing 46-79-30 B5 Bottom Bracket is designed to meet the demands of serious cyclists seeking smooth performance and lasting durability. Engineered with two machined aluminum cups that screw into each other, this bottom bracket ensures precise alignment within the bike frame.

Enhanced Frame Alignment for Reduced Wear: The screw-in cup design provides optimal case alignment, minimizing stress on the frame and reducing the likelihood of cracking. This alignment helps to maintain the integrity of both the frame and bottom bracket, giving you greater confidence on any ride.

Improved Fluidity and Power Efficiency: With better alignment, friction between moving parts is minimized, resulting in improved fluidity and efficient power transfer. This precision engineering lets you experience a smoother, more responsive ride, whether you’re on the road or trail.

Extended Bearing Longevity: By reducing friction and ensuring proper alignment, the bracket’s design promotes longer bearing life. This extends the performance quality and reduces the frequency of replacements, offering greater value over time.

The design allows easy access to bearings, making replacements simpler and faster. With this bottom bracket, you can keep maintenance to a minimum while ensuring your bike performs at its best.

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.