Lightweight, strong, and built to last. The TOOPRE Carbon Fiber Headset Top Cap Kit features a high-strength 3K carbon fiber cover and a colorful TC4 titanium alloy bolt. Designed to replace heavy aluminum components, this kit shaves weight while providing superior corrosion resistance. Available in 28.6mm and OD2 (31.8mm) specifications, it’s the ultimate lightweight upgrade for your bicycle’s headset.