Hidden Bike Headset for Full IS52 Standard Frames Upper 28.6mm Lower 40mm Internal Cable Routing Headset with 8.5mm

Feature: 1. Compatibility: Designed for full IS52 standard head tubes, the top headset matches a 28.6mm Diameter steerer, while the bottom headset is compatible with a 40mm tapered steerer, ensuring robust support for high rigidity and responsiveness in the steering system. 2. Inner Cable Routing Headset: This bicycle headset supports hydraulic brakes and electronic shifting systems seamlessly routed through the head tube, keeping cables entirely hidden within frame to enhance aesthetics and aerodynamic performance while preventing wear from exposed lines. 3. Robust Construction: Made from CNC machined aluminum alloy, this bike headset offers a sturdy yet lightweight structure that effectively protects the internal bearing system. It enhances the overall visual. 4. Water Proof Bearing: Equipped with dual lip sealed bearings in the bicycle headset that effectively repel water, mud and dust, maintaining smooth rotation in harsh riding conditions. 5. Easy to Install: The modular design allows for easy assembly and disassembly without special tools, compatible with mainstream forks and internal cable routing layouts. It serves as an ideal solution for upgrading traditional exposed headsets to hidden cable routing systems. Specification: Item Type: Bike Headset Material: Aluminum Alloy, CR Molybdenum Steel. Package List: 1 x Nut 1 x Headset Cover 1 x Compression Ring 2 x Bearings 2 x Washers 2 x Other Components