SM3 Helmet - Radium - Gloss Black/Red Fluo/White - 2XL
The Alpinestars SM3 Helmet Radium in 2XL size combines advanced safety features with optimized comfort for offroad, motocross, and enduro enthusiasts. Its thermo-injected shell utilizes a polymer blend with varied thicknesses, engineered to provide superior impact protection while maintaining a lightweight profile. The impact-resistant outer shell, crafted from durable thermoplastic, works in tandem with an inner composite fiber shell to absorb and distribute impact forces effectively. This construction ensures riders benefit from high-level protection without compromising maneuverability or comfort.
Comfort is enhanced through a multiple density inner liner, featuring five different densities to manage impact energy and reduce overall helmet weight. The polished EPS liner, coated to minimize friction, works alongside the helmet*s rotational impact management system, which includes a special comfort liner designed to reduce oblique impact forces. The helmet's fit can be precisely tailored to individual head shapes using adjustable crown and cheek pads, ensuring a secure and comfortable fit during demanding rides.
Ventilation is a key feature, with ten intake ports and seven exhaust outlets that maximize airflow and heat transfer. The visor design channels air efficiently into these ports, helping keep riders cool and focused. Additionally, the visor release system is engineered to release with a pre-determined force, reducing strain on the rider*s neck during impacts. The helmet also features integrated hydration channels within the cheek pads for added convenience during long rides.
Safety is prioritized through an emergency release system and removable cheek pads, enabling quick and safe removal of the helmet in emergency situations. The chin area is optimized for impact absorption, and stainless steel D-rings ensure a secure fit. The interior comfort liner is made from recycled materials, supporting environmentally conscious riding. Soft textile chin straps provide a snug fit, while the 3D contoured foam and low-friction coatings enhance rider comfort and impact resilience. The overall design delivers a blend of performance, protection, and comfort tailored for offroad and MX riders seeking high-quality safety gear.
Features:
- Thermo-injected shell with varied thickness for optimized impact protection and lightweight design
- Impact-resistant thermoplastic outer shell combined with a composite fiber inner shell for maximum impact absorption
- Multiple density EPS liner with five different densities for tailored impact management and reduced weight
- Polished inner EPS liner with friction-reducing coating to minimize rotational impact forces
- Enhanced ventilation with ten inlet and seven exhaust ports for superior airflow and heat transfer
- Visor designed to direct airflow into ports, improving cooling during rides
- Visor release system calibrated for safe impact release to reduce neck strain
- Integrated hydration channels in cheek pads for rider convenience
- Emergency release system and removable cheek pads for quick, safe removal
- Chin area optimized for impact performance with stainless steel D-rings for secure fit
- Interior built with recycled materials for eco-conscious performance
- Soft textile chin strap for comfort and safety