Feature 1The headset is made of quality aluminium alloy material, antirust, sturdy and durable. 2Lightweight but high strength, fits perfectly with your bike headset. 3The cap is good for keeping dust and water away to lengthen the durability. 4Can prevent the bearing from overabrasion and make it rotate freely. 5Useful accessory for replacing old headset of bike.SpecificationFeatures: The headset is made of quality aluminium alloy material, anti-rust, sturdy and durable. Lightweight but high strength, fits perfectly with your bike headset. The cap is good for keeping dust and water away to lengthen the durability. Can prevent the bearing from over-abrasion and make it rotate freely. Useful accessory for replacing old headset of bike. Specification: Item Type: Bike Headset Material: Aluminium alloy Color option: black, red Assembly height: 7.5+5.3=12.8 Upper bowl 1-1/8inch half hidden, top plug 44mm in diameter Lower bowl 1.5inch half hidden, bottom plug diameter 56MM Suitable for most bike with 56mm head tube and 28.6mm front fork (55mm head tube can not use) Package List: 1 x Bike Headset .wang-edit-text{ font-family:'Arial' important; } .wang-edit-text table { border-top: 1px solid 000; border-left: 1px solid 000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid 000; border-right: 1px solid 000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }