Features: This bikes headsets bearing cup supports internal routing for front brakes, delivering a cleaner appearance, reduced wind resistance, and enhanced bike aesthetics for superior performances. Featuring a large size bearing for wider contact surfaces and pre drilled routing holes, it ensures smoother steering, minimized wear and easy installation. Ideal for cycling enthusiasts, professional riders, and bike builders who demand safe, quality components for their upgrades. Perfect for road cycling, mountain biking, or daily commutes where stable steering and a sleek design enhances ride comfort and efficiency. Suitable for most modern internal routing fork structures, this headsets bearing offer seamless integration and durability for upgrades. Specifications: Materials: Aluminum Alloy Color: As The Picture Shows Package Weight: approx.220g Styles: (Optional) 4 Styles are Available as Shown in the Picture. Applicable Head Tube: 52x52mm Front Fork Risers: Straight Tube 28.6mm & Taper Tube 39.8mm Package Includes: 1Pc Bicycles Bearing Headsets note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!