🚴♂️ Elevate Your Ride with Precision and Style! Achieve the perfect height adjustment with 7 versatile sizes. Crafted from woven carbon fiber for superior strength and longevity. Outperforms aluminum with enhanced resistance to wear and tear. Weighing only 45g, it won't weigh you down on your rides. Designed to fit most road bicycles seamlessly. Woven carbon for durability Lightweight at 45g 7 sizes for precision The Sumind 11 Pieces Bike Carbon Fiber Headset Spacer set includes 7 different sizes (1 mm to 20 mm) for precise height adjustments, crafted from durable woven carbon fiber. Weighing only 45g, these spacers are designed to fit most road bicycles, offering superior strength and corrosion resistance compared to traditional aluminum options.