Blackbearing D10 40x51.9x7mm 45/45° Headset Bearing

The Blackbearing D10 40x51.9x7mm 45/45° Headset Bearing is designed to enhance your cycling experience by delivering smooth, stable steering. As a premium replacement, it ensures precise handling and durability for every ride.

Tailored for 1"-1/2 Fork Steerers: With dimensions of 40 x 51.9 x 7mm and a 45/45° angle, the D10 is specifically crafted for 1"-1/2 fork steerers. Its compatibility with leading brands like FSA, Stronglight, Cane Creek, Acros, and Ritchey makes it an ideal fit for a variety of bicycles.

Robust Chrome Steel Construction: Built with SAE52100 Chrome Steel balls and rings, the D10 offers exceptional strength and resistance to wear. This durable construction ensures reliable performance, even in demanding cycling conditions, providing long-lasting peace of mind.

Angular Contact Bearings for Superior Control: The advanced angular contact design of the D10 allows it to efficiently handle radial and axial loads, delivering balanced and responsive steering. This design enhances control and stability, ideal for technical trails and sharp turns.

Pre-lubricated with premium-quality grease, the Blackbearing D10 minimizes friction, ensuring effortless steering and extending the bearing’s lifespan.

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.