The bicycle headset is made of quality aluminium alloy material which is anti rust, sturdy and durable. It is an useful accessory for replacing old headset of bike. Feature: 1.?DURABLE AND LIGHT?Made of high strength aluminum alloy with light weight, the bike headset has high strength and wear resistance. 2.?CORROSION RESISTANT?The anodic oxide film is painted to form a dense oxide film on the aluminum surface, not easy broke. 3.?EASY TURNING?Each headset is paired with two bearings to make the handlebar light and smooth when turning. 4.?INDISPENSABLE ACCESSORY?It is an useful accessory for replacing old headset of bike. 5.?PROTECT YOUR BEARING?Bicycle headset can prevent the bearing from over abrasion and make it rotate freely. Specification: Condition: 100% Brand New Item Type: Bearing Headset Material: aluminium alloy Color: black Weight: Approx. 116g Applicable bike frame: Applicable bike frame heads tube 34mm/1.3in inner diameter Applicable front fork: Applicable front fork stem 28.6mm/1.1in outer diameter Package List: 1 Set x Bearing Headset