Features1Made of high-strength aluminum alloy with light weight, high strength and wear resistance. 2The anodic oxide film is painted to form a dense oxide film on the aluminum surface, beautiful and corrosion-resistant. 3Each headset is paired with two bearings to make the handlebar light and smooth when turning. 4With rubber waterproof ring, it can be waterproof, anti-corrosion and anti-mud, and has a long service life. 5Wonderful accessory for mountain bike, road bike.SpecificationItem Type:Bearing HeadsetMaterial: aluminium alloyColor: blackWeight: Approx. 116gApplicable bike frame: Applicable bike frame heads tube 34mm/1.3in inner diameterApplicable front fork: Applicable front fork stem 28.6mm/1.1in outer diameterPackage List1 Set x Bearing Headset