SM3 Helmet - Radium - Gloss Black/White/Gray - XS
The Alpinestars SM3 Helmet Radium XS is engineered for riders who demand optimal protection combined with lightweight comfort for offroad, motocross, and enduro riding. Featuring a thermo-injected shell incorporating a proprietary polymer blend with varied thicknesses, this helmet offers a perfect balance of impact resistance and reduced weight. The impact-resistant outer shell is constructed from durable thermoplastic, while the inner shell uses a composite fiber layer positioned between the outer shell and EPS liner for enhanced impact absorption. This layered construction ensures superior safety during high-impact situations while maintaining a lightweight profile, ideal for aggressive riding styles.
Designed with rider comfort and fit customization in mind, the helmet includes adjustable crown and cheek pads, allowing a tailored fit for different head shapes. The multiple-density inner liner, featuring a six-piece EPS core with five density zones, ensures optimal impact management by distributing forces efficiently across critical areas. Additionally, a polished inner EPS liner coated to reduce friction minimizes rotational impact forces, which are crucial during oblique impacts. The helmet's surfaces are engineered to minimize the effects of oblique impacts, with a low-friction coating on the inner liner that helps reduce rotational acceleration forces, thereby protecting the rider*s brain during falls.
Ventilation is a key feature of the Alpinestars SM3 Helmet Radium, with ten intake vents and seven exhaust ports working in harmony to maximize airflow and heat exchange. The visor is designed not only for aerodynamic performance but also to channel air into the ports, enhancing cooling airflow during rides. Its release system is engineered to activate with a pre-determined force, reducing strain on the rider's neck during impact events. The interior comfort is further improved with a liner made from recycled materials, reflecting environmentally conscious manufacturing. Integrated hydration tube channels in the cheek pads and a soft textile chin strap enhance rider convenience and safety, ensuring hydration access during long rides.
This helmet includes an Emergency Release System and removable cheek pads, facilitating safe and easy removal even when the helmet is worn. The 3D contoured foam interior provides added comfort, while the chin area is optimized for impact performance. Stainless steel D-rings ensure a secure fit, maintaining helmet stability during aggressive maneuvers. Overall, the Alpinestars SM3 Radium helmet combines advanced impact protection features with rider-centric comfort, making it a reliable choice for offroad enthusiasts seeking high-performance gear.
Features:
- Varied thickness shell construction for optimized impact protection and lightweight performance
- Thermo-injected outer shell with impact-resistant thermoplastic for durability
- Composite fiber inner shell between outer shell and EPS liner for maximum impact absorption
- Adjustable crown and cheek pads for a tailored fit
- Multiple density EPS liner with five zones for effective impact management
- Low friction coating on the EPS liner reduces rotational forces during oblique impacts
- Maximized ventilation with ten intake and seven exhaust ports for superior airflow
- Visor designed to direct air into ventilation ports for enhanced cooling
- Visor release system engineered to reduce neck strain during impact
- Inner liner made from recycled materials for environmental sustainability
- Integrated hydration tube channels in cheek pads for convenience
- Soft textile chin strap for added comfort and safety
- Emergency Release System and removable cheek pads for safe removal
- 3D contoured foam for rider comfort
- Chin area optimized for impact protection
- Stainless steel D-rings for a secure fit