Blackbearing D4 40x52x12mm 45/45° Headset Bearing

The Blackbearing D4 Headset Bearing is meticulously crafted to deliver exceptional steering performance for cyclists. Designed to replace original bearings, it ensures a smooth and responsive ride, enhancing your overall cycling experience.

Built with Premium Materials: Constructed using SAE52100 chrome steel for both balls and rings, the D4 headset bearing offers unmatched durability and strength. Its premium-quality grease and specific joints contribute to long-lasting performance, even under demanding conditions.

Perfect Fit and Compatibility: With dimensions of 40 x 52 x 12 mm and a 45/45° angular contact design, this bearing is perfectly suited for 1"1/2 fork steerers. It ensures precise alignment and smooth rotation, making it an ideal upgrade or replacement for your bike.

Versatile and Reliable Replacement: The Blackbearing D4 is compatible with leading brands like FSA, Stronglight, Cane Creek, Acros, and Ritchey. Its versatile design makes it a reliable choice for a wide range of cycling setups.

Whether you’re navigating challenging trails or enjoying a smooth road ride, this bearing ensures a seamless and reliable performance.

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.