Feature:1. Aluminum Alloy: Using high quality aluminum alloy material, the bicycle headset is light in weight and not easy to deform, ensuring a long service life.2. High Strength Star Nut: Steel headset star nut, which is light in weight and of high strength and long service life, it is a perfect headset accessories.3. Double Bearing Structure: The upper and lower double bearing structure of the headset is and unimpeded, effort saving, and can well protect the headset.4. Product Application: The headset is suitable for ordinary straight fork tube. With 44mm outer diameter, it is suitable for head tube with 44mm inner diameter.5. Perfect Replacement: Easy to assemble and reliable to use, it is a great headset replacement for your bike, making riding easier and more enjoyable.Specification:Item Type: Bicycle HeadsetMaterial: Aluminum Alloy + SteelProduct Weight: Approx. 110g / 3.9ozApplication: Suitable for ordinary straight fork tube Package List:2 x Bearing Headset1 x Headset Star Nut Top Set1 x Upper Compression Ring1 x Upper Headset 1 x Low Headset1 x Low Cover1 x Top Cover