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The Alpinestars SM3 Youth Radium Helmet is specifically designed for young riders engaging in motocross, enduro, and off-road activities. This helmet combines advanced safety features with comfort and lightweight construction, making it an ideal choice for children from ages 3 to 8. The thermo-injected shell utilizes a specialized polymer blend, optimized through varying thicknesses to provide superior impact resistance while maintaining a low weight of approximately 2.3 pounds. It is available in three sizes—Youth Small, Youth Medium, and Youth Large—with interchangeable crown and cheek pads for a customizable fit that adapts as your child grows. The helmet’s design ensures a snug fit and maximum comfort, essential for off-road adventures, with the Youth Small version tailored for the smallest riders.
Constructed from impact-resistant thermoplastic, the shell is engineered to meet rigorous safety standards, including DOT and ECE 2206 homologation. The helmet features a composite fiber inner shell for enhanced impact protection, especially in the chin area, where Alpinestars has strengthened the structure to meet new testing standards. The multi-density EPS liner absorbs impacts precisely in different areas, reducing the risk of injury, while the inner and outer surfaces are designed to minimize the effects of oblique impacts. The integrated low-friction coating on the EPS liner acts as a slip plane, mimicking cerebrospinal fluid to reduce rotational forces during certain impacts.
For ease of use and safety, the SM3 Youth includes a patented visor release system that reduces neck strain during impacts, an emergency release system, and removable cheek pads for quick, safe removal if necessary. The soft textile chin strap, measuring 1 inch in width, offers comfort and security, secured with stainless steel D-rings to ensure a snug fit. The helmet’s ventilation system features 10 inlet ports and seven exhaust outlets, providing maximized airflow and heat transfer, keeping young riders cool during intense activity. The helmet also incorporates hydration tube channels within the cheek pads, adding convenience for longer rides. Additionally, the helmet’s inner liner is made from recycled materials, supporting environmentally conscious manufacturing.
Overall, the Alpinestars SM3 Youth Radium Helmet provides a balanced combination of protection, comfort, and ventilation for young off-road enthusiasts. Its innovative features and durable construction make it a reliable choice for parents seeking a high-performance helmet that adapts to a growing child's needs while maintaining stringent safety standards.
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