This fits your . Make sure this fits by entering your model number. Aluminum Alloy Material: Made of high quality aluminum alloy material, light weight, not easy to deform, and extend the service life. Steel Sunflower: Steel star nut is light in weight and has high strength, exquisite workmanship, beautiful appearance, long service life. Double Bearing Structure: The upper and lower double bearing structure of the headset is and unimpeded, labor saving and easy to protect. 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. Scope of Application: Ordinary cone tube fork and straight tube fork, 44mm/1.7in outer diameter of headset and 55mm/2.17in inner diameter of head tube.