Key benefits Long lasting durability for rugged riding: designed to withstand the rigors of mountain road cycling. Crafted for reliability and style: forged CNC machined shell in aluminum alloy with an anodized finish for durability and a clean look. Smooth and quiet operation: two stainless steel sealed bearings (upper and lower) provide strong, smooth rotation for stable steering. Precise compatibility: designed for bikes with an inner diameter head tube frame (upper and lower) and a standard 6 mm outer diameter upper tube. What sets it apart strength aluminum alloy with a precision CNC shell delivers reliable fit and stiffness. Anodized color finish resists wear and corrosion while enhancing appearance. Dual sealed bearings ensure consistent performance and longterm reliability. Compatibility and specifications Headset type: mountain road bike headset Material: aluminum alloy, CNC machined shell Finish: anodized coloring Bearings: two stainless steel sealed bearings (upper and lower) Fitment: designed for bikes with an inner diameter head tube frame (upper and lower) and a 6 mm outer diameter upper tube (standard) Use scenarios Trail and endurance riding: provides dependable steering and durability on rough terrain and long descents. Upgrading older bikes: restores smooth, quiet rotation and improved handling on challenging surfaces. bike builds or upgrades: compatible with standard inner head tube dimensions and 6 mm outer diameter upper tube to ensure a proper fit and performance.