🔧 What You GetYou will receive a set of 8 headset spacers in 7 different thicknesses: 1.0 / 1.5 / 1.85 / 2.0 / 2.18 / 2.35 / 2.5 mm. This wide range of sizes ensures you can easily find the perfect spacer for precise adjustments on your bike. 🛠️ High-Quality MaterialCrafted from premium aluminum alloy, these bike spacers are lightweight, strong, and durable. The sturdy material offers excellent hardness while helping protect your bike components from wear and damage. ⚡ Easy to UseDesigned for quick and hassle-free installation, these bicycle spacers can be installed or removed easily without special tools. Their simple design allows fast adjustments to your flywheel hub, saving you time and effort. 🚴 Versatile Bicycle SpacerThese multi-purpose cassette flywheel spacers help solve common bike adjustment issues. They also help achieve proper chain alignment and prevent unwanted component friction for smoother performance. 🌍 Wide ApplicationsWith 7 different sizes included, this spacer set supports various conversions between 7–11 speed cassettes and hubs. These chainring spacers help ensure optimal fit, smooth operation, and better bike performance.