"Enhance your bike’s handling with the Tripeak Sealed AC Headset Bearing. Precision AC bearings with black oxide coating provide smooth, reliable steering while resisting wear and corrosion. With dimensions of 46.9x39x7mm and a 45/45° angle, it ensures accurate fitment and balanced load distribution for road and MTB applications. Perfect for cyclists seeking high-performance, durable headset components for precise control and long-lasting performance."