Viaron Bicycle Bearing Headset Aluminum Alloy Mountain Bike Stem Headset for Cone Straight Tube ForkBlack

Feature: 1. Aluminum Alloy Material: Made of high quality aluminum alloy material, light weight, not easy to deform, and extend the service life. 2. Steel Sunflower: Steel sunflower is light in weight and has high strength, exquisite workmanship, beautiful appearance, long service life. 3. Double Bearing Structure: The upper and lower double bearing structure of the headset is smooth and unimpeded, labor saving and easy to protect. 4. Rotate Freely: Bike headset can prevent the bearing from excessive wear and make it rotate freely. The lid is good for dust and water resistance to extend durability. 5. Scope of Application: Ordinary cone tube fork and straight tube fork, 44mm 1.7in outer Diameter of headset and 56mm 2.20in inner Diameter of head tube. Specification: Item Type: Bicycle Headset Product Material: Aluminum Alloy + Steel Weight: Approx. 138g 4.9oz Headset Outer Diameter: Approx. 44mm 1.7in Head Tube Inner Diameterr: Approx. 56mm 2.20in Application: Cone Tube Fork and Straight Tube Fork. Package List: 2 x Bearing1 x Star Nut Headset Cover Set 1 x Upper Urgent Loop1 x Upper Headset1 x Lower Headset1 x Bottom Cover1 x Top Cover1 x Reducing Sleeve