The Alpinestars SM3 Helmet is engineered to deliver an optimal blend of performance, protection, and comfort for MX, Enduro, and offroad riders. Featuring a thermo-injected shell with an advanced polymer blend, the construction utilizes varying degrees of thickness to provide high-level impact protection while maintaining a lightweight profile. The inner shell incorporates a composite fiber assembly between the outer thermoplastic shell and the EPS liner to maximize impact resistance.
Advanced Construction and Impact Management
This helmet features a sophisticated 6-piece EPS liner with multiple densities designed to effectively manage volume and impact performance across different zones. To address rotational acceleration forces, the inner EPS liner is polished and treated with a special low-friction coating, reducing friction with the comfort liner during certain oblique impacts. The inner and outer surfaces are specifically engineered to minimize the effects of oblique energy transfer, providing comprehensive head protection.
Superior Ventilation and Airflow
Stay cool during intense rides with a maximized ventilation system featuring ten inlets and seven exhaust ports for high levels of heat transfer. The visor has been designed to direct air into the ports for enhanced airflow, ensuring the rider remains comfortable in demanding conditions. Additionally, the visor release system is engineered to release with a pre-determined amount of force, effectively reducing the load on the rider's neck during an impact.
Comfort and Specialized Features
The interior is designed for a tailored fit, utilizing crown and cheek pads with 3D contoured foam. For the environmentally conscious rider, the comfort liner is constructed using recycled materials. The helmet also features integrated hydration tube channels within the cheek pads for convenience during long offroad sessions. A soft 25 mm textile chin strap ensures a secure and comfortable fit for all-day wear.
Safety and Protection Standards
Safety is paramount, and the SM3 is equipped with an Emergency Release System (ERS), allowing for the safe and easy removal of cheek pads while the helmet is still being worn. The chin area is optimized for superior impact performance, and the helmet is secured with durable stainless steel D-rings to ensure a tight, reliable fit at all times.
