1、Aluminum Alloy Material: The bike headset kit is made of premium aluminum alloy, ensuring rust resistance and durability for long lasting performance. 2、Sealed Dual Bearings: With sealed dual bearings, the bike headset is waterproof and maintenance free. It provides a sturdy and smooth rotation without any noise, offering a reliable riding experience. 3、CNC Craftsmanship: The bike headset is crafted with CNC technology and features an anodized coloring process. The surface is smooth, ensuring resistance to color fading and providing a stylish appearance. 4、Fine Processing for Perfect Fit: The bike headset undergoes meticulous processing to ensure a perfect fit with your bike. It offers optimal stability and performance during your rides. 5、Compatibility: The bike headset is suitable for 44 to 49.7mm tapered steerer frame with 28.6mm standard straight steerer front fork, provides a precise and secure connection for your bike's steering system. Item Type: Bike Headset Material: Aluminum alloy Weight: Approx. 106g/3.7oz Application: Suitable for 44 to 49.7mm tapered steerer frame with 28.6mm standard straight steerer front fork 1 x Headset Star Nut Assembly 5 x Bike Headset Spacers