SM3 Helmet - Radium - Gloss Black/Red Fluo/White - XL
The Alpinestars SM3 Helmet Radium XL is designed for offroad enthusiasts seeking optimal protection, comfort, and performance during motocross, enduro, and other offroad activities. Featuring a varied thickness shell construction, this helmet combines impact-resistant thermoplastic outer shell with a thermo-injected polymer blend that is engineered to provide excellent impact absorption while maintaining a lightweight profile. The inner shell, constructed with a multi-density composite fiber, works in tandem with a six-piece EPS liner with five different densities to effectively manage impacts and reduce rotational forces, ensuring rider safety in demanding environments.
Maximized ventilation is a key feature of the SM3 helmet, with ten intake ports and seven exhaust outlets that facilitate high levels of heat transfer and airflow. The visor is designed to channel air into the helmet's vents and has a release system that ensures it detaches with a pre-determined force, reducing strain on the rider's neck during impacts. Inside, the comfort liner is made from recycled materials, emphasizing sustainability without compromising performance. It includes integrated hydration channels within the cheek pads for added convenience, along with a soft textile chin strap measuring 25 mm for secure fit and comfort.
The helmet also incorporates advanced safety features such as an Emergency Release System with removable cheek pads for quick and safe removal, even with the helmet on. The 3D contoured foam padding enhances rider comfort, while the chin area is optimized for superior impact performance. Stainless steel D-rings ensure a tight, secure fit, maintaining stability during aggressive riding. The design is finished in a sleek gloss black, red fluo, and white color scheme that appeals to offroad riders who value both style and safety on the trail. Whether tackling motocross tracks or rough terrain, the Alpinestars SM3 helmet offers a comprehensive package of protection, ventilation, and comfort tailored for high-performance offroad riding.
Features:
- Varied thickness shell construction for optimized impact protection and lightweight design
- Thermo-injected shell with impact-resistant thermoplastic outer layer
- Multi-density EPS liner with five different densities for superior impact absorption
- Impact management with polished, low-friction inner EPS liner coating
- Enhanced ventilation with ten inlet and seven exhaust ports for optimal airflow
- Visor designed to direct airflow and equipped with a release system to reduce neck strain during impacts
- Comfort liner made from recycled materials for sustainability and comfort
- Integrated hydration channels within cheek pads for rider convenience
- Soft textile chin strap measuring 25 mm for secure fit and comfort
- Emergency Release System with removable cheek pads for quick and safe removal
- 3D contoured foam padding for increased rider comfort
- Chin area optimized for superior impact performance
- Stainless steel D-rings for a secure and adjustable fit