Aluminum alloy bicycle stem/headset spacers designed to raise the handlebar and provide finer height adjustment for a tailored riding position. Key benefits Precise height tuning: Small-size spacer range lets you make incremental adjustments to handlebar height for better comfort and control across different riding styles. Lightweight performance: Made from aluminum alloy to minimize added weight, helping preserve overall bike efficiency and responsiveness. Durable construction: Corrosion-resistant alloy delivers long-lasting service under normal riding conditions. Easy installation: Simple to fit between the headset and stem — install or remove quickly to test different stack heights without special tools. Clear function: Specifically intended as stem/headset spacers to increase handlebar height and refine cockpit geometry. Important attributes Function: Raises the handlebar and enables fine-grain height adjustment when used with compatible headsets and stems. Compatibility: Designed for use with bicycle stem/headsets (used as spacers). Confirm fit with your headset/stem stack before installation. Size: Small-profile spacers for incremental stack increase without large changes to cockpit layout. Material: Aluminum alloy — balances low weight with structural durability. Performance: Reduces unnecessary weight while allowing precise position tuning to improve comfort and pedaling efficiency. Practical use scenarios Daily commuting: Add a spacer to raise the bars slightly for a more upright, comfortable posture on short-to-medium rides. Road and fitness riding: Fine-tune handlebar height to find the balance between aerodynamic position and comfort during longer sessions. Bike setup and testing: Quickly install or remove small spacers when dialing in cockpit fit after swapping stems, headsets, or handlebar setups. What you get A compact, durable spacer solution to raise your handlebar and achieve precise height adjustments with minimal added weight and easy installation.