FOX Speedframe Retention System The FOX Speedframe Retention System is a replacement or upgrade component designed to ensure a secure, comfortable fit for your FOX Speedframe helmet. Engineered with precision, this retention system provides adjustability and stability, allowing riders to maintain focus and confidence on the trail. Key Features: Compatibility: Specifically designed for FOX Speedframe helmets Adjustable Fit: Precise dial system for customizable comfort and stability Durable Construction: Made from high-quality materials to withstand rugged use Lightweight Design: Minimizes weight without compromising on performance Keep your helmet performing at its best with the FOX Speedframe Retention System, offering a secure fit for any trail adventure.