This aluminum alloy headset is designed for fixed-gear bikes, providing a smooth and reliable bearing system for your bicycle. Its robust construction ensures durability and performance, making it an for both mountain and road bikes. The headset's sleek design seamlessly integrates with your bike's aesthetics, enhancing its overall look. Features - Color: Black -Material:Aluminum alloy - Size: 5.00X4.50X4.50cm/1.97X1.77X1.77in -Inner diameter of head tube: 34 mm -Applicable front fork: upper diameter: 28.6 mm, lower diameter: 30 mm -Lightweight construction: made from aluminum alloy, this headset is lightweight and sturdy, ensuring it won't easily get damaged during rides -Versatile compatibility: suitable for fixed gear, mountain, and road bikes, offering a wide range of applications for different cycling needs -Easy installation: designed for simple and quick installation, allowing users to replace the headset effortlessly on their own -Stable support: provides stable front fork support, enhancing the smoothness and stability of your ride -Elegant design: crafted with precision, this headset adds to the overall aesthetic appeal of your bicycle Package list: 1 x bicycle headset