"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 41x30.1x6.5mm and a 45/45° angle, it ensures accurate fitment and optimal load distribution for road and MTB applications. Ideal for riders seeking high-performance, long-lasting headset components for precise and durable control."