Features1MATERIAL: This bicycle headset kit includes headset and star nut and is made of aluminum alloy, which is not easy to rust and durable. 2SEALED: This bicycle headset kit is sealed and waterproof and maintenance free, sturdy and good for use, rotates flexibly and noiselessly. 3CNC CRAFTSMANSHIP: This bicycle headset kit is made of CNC craftsmanship and anodized coloring. The surface is smooth and not easy to lose color. 4 FIT: This bicycle headset kit is finely machined to ensure a smooth surface and a fit for your bike, with a high degree of adaptability. 5APPLICABLE: Suitable for 41.852mm/ 1.652.05in tapered head tube frame with 28.6mm / 1.1in standard straight fork or 1.5in standard tapered fork.SpecificationItem Type: Bicycle headset kitMaterial: AluminumWeight: Approx. 105g / 3.7ozSuitable For: 41.8-52mm/ 1.65-2.05in tapered headtube frame with 28.6mm / 1.1in standard straight fork or 1.5in standard tapered fork.Package List1 x Headset Star Nut1 xBicycleHeadset Parts