The Alpinestars SM3 Helmet is engineered for riders seeking an optimal blend of performance, protection, and comfort. Optimized for MX, Enduro, and Offroad use, this helmet features a sophisticated thermo-injected shell incorporating a polymer blend with varying degrees of thickness. This construction is specifically designed to deliver superior impact protection while maintaining a lightweight profile, reducing rider fatigue during long sessions on the track or trail.
Advanced Construction and Impact Management
The lightweight outer shell is crafted from impact-resistant thermoplastic, supported by an inner shell of composite fiber assembled between the outer layer and the EPS liner. For enhanced impact absorption, the helmet utilizes a multiple-density inner liner system. This includes a 6-piece EPS liner with various densities to effectively manage volume and impact performance across different zones. The inner EPS liner is polished with a special low-friction coating to reduce rotational acceleration forces, helping to manage the effects of oblique impacts.
Superior Ventilation and Comfort
Stay cool under pressure with a maximized ventilation system featuring ten inlets and seven exhaust ports for high levels of heat transfer. The visor is strategically designed to direct air into the ports for enhanced airflow. Inside, the comfort liner is constructed using recycled materials for a lower carbon footprint, while the fit can be tailored via the crown and cheek pads. For long-distance riders, hydration tube channels are seamlessly integrated into the cheek pads.
Safety Features
Safety is paramount with the inclusion of an Emergency Release System (ERS), allowing for the safe removal of cheek pads while the helmet is still being worn. The visor release system is engineered to detach with a pre-determined amount of force, effectively reducing strain on the rider's neck during an impact. Finalizing the safety suite are stainless steel D-rings for a secure fit and a 25 mm soft textile chin strap for maximum comfort and stability.
Technical Highlights:
- Varied thickness thermo-injected polymer shell for optimized protection.
- 6-piece multiple density EPS liner for precision impact management.
- Polished EPS with low-friction coating to reduce rotational forces.
- High-efficiency ventilation with 10 inlets and 7 exhaust ports.
- Emergency Release System (ERS) and 3D contoured foam cheek pads.
- Integrated hydration tube channels for off-road convenience.
- Secure stainless steel D-ring closure system.
