CUSTOM HEADSET TOP CAP – Add style and personality to your ride with this unique MTB headset top cap, perfect for mountain bikes, road bikes, and bicycles. PREMIUM FITMENT – Designed for standard 1-1/8” bike stems, this stem cap is compatible with most bicycle and MTB headset cap. DURABLE ALUMINUM CONSTRUCTION – Made from high-quality anodized aluminum, this bike stem cap is tough, lightweight, and built to last. SLEEK, CUSTOM DESIGNS – Choose from stylish designs to upgrade your mountain bike stem cap, road bike headset top cap, or bicycle stem cover. WHAT'S INCLUDED – (1) Custom bicycle headset cap; perfect for riders looking to replace or upgrade their threadless top cap (bolt not included).