W H A T W I L L Y O U G E T PRODUCT SPECIFICATION: Item Type: Bicycle Headset Material: Aluminum Alloy + Steel Product Weight: Approx. 120g / 4.2oz Application: Suitable for ordinary straight tube front fork Package List: 2 x Bearing 1 x Headset Star Nut Top Cap Set 1 x Upper Compression Ring 1 x Upper Headset 1 x Low Headset 1 x Low Cover 1 x Top Cover PRODUCT BENEFIT: Bicycle disc brake conversion seat is made of aluminum alloy material, strong and sturdy, which undoubtedly extends its service life. The modified bracket can be converted into ordinary bicycles and disc brake bicycles, and upgraded to tripod disc brake bicycles, which is undoubtedly rider's necessities, easy to use and practical. When there is no disc brake seat on the bike frame, disc brake can be installed after installing this product. 100% Satisfaction Guarantee: We focus on the needs of our customers, with the aim of providing customers with high-quality product tools and the most comfortable experience. If there is a problem with the product, please communicate with us in time.