Enhance your cycling experience with the carbon fiber headset spacers. Designed for both mountain and road bikes, these bike stem spacers provide a sleek and lightweight solution for adjusting your bike's handlebar height. The carbon fiber material ensures durability and a professional look, making your bike stand out on any terrain. Features -Color:Black -Material:Carbon Fiber -Size:3.50X3.50X1.00cm/1.38X1.38X0.39in -Lightweight carbon fiber: made from carbon fiber, these bike stem spacers significantly reduce weight, enhancing cycling efficiency for both mountain and road bikes, ideal for speed enthusiasts -Spacer designed: the round spacer design enhances fork stability, effectively reducing vibrations from rough terrains, improving overall riding comfort -Precision manufacturing: precision crafted to ensure seamless integration with the fork headset, improving steering accuracy, suitable for complex and varied riding environments -Sturdy and longterm: wearresistant and sturdy, these bike headset spacers maintain excellent performance over time, reducing maintenance frequency, good for daily training and professional races -Universal compatibility: designed to be compatible with various bike models, easy to install without additional tools, meeting the upgrade needs of different brands of mountain and road bikes Package list: 18 x bike stem spacers