The Alpinestars SM3 Helmet in Radium Red/Red Fluo/White is engineered for motocross, enduro, and off-road riding. This size XS helmet combines impact protection, ventilation, comfort, and lightweight performance in a thermo-injected shell designed with varied thickness for optimized strength and reduced weight. The lightweight outer shell uses impact-resistant thermoplastic, while a composite fiber layer between the shell and EPS liner adds protection against impacts. The crown and cheek pads can be tailored to help provide a secure, comfortable fit for the rider.
The SM3 uses a six-piece, multi-density EPS liner with five separate densities to manage impact absorption and volume in the appropriate areas. A low-friction coating on the polished inner EPS surface helps reduce friction between the liner and comfort padding, supporting rotational impact management during certain oblique impacts. The helmet also features ten intake vents and seven exhaust ports for improved airflow and heat transfer, with a visor designed to direct air into the ventilation system. Its visor release system is engineered to release at a predetermined force to help reduce stress on the rider’s neck during an impact.
Safety and convenience features include an Emergency Release System and removable cheek pads that allow safer helmet removal after an incident. Three-dimensional contoured cheek foam helps improve comfort, while integrated hydration tube channels support convenient hydration system routing. The comfort liner uses recycled materials, and the soft textile chin strap with stainless steel D-rings provides a secure fit. The chin area is optimized for impact performance, making the SM3 a practical choice for riders seeking dependable protection and comfort for motocross, enduro, and off-road applications. Manufacturer: Alpinestars. Manufacturer part number: 8300826-3216-XS. Vendor part number: 8300826-3216-XS.
Features:
- Thermo-injected shell: Varying shell thickness is engineered to balance impact protection, durability, and reduced weight.
- Off-road construction: Designed for motocross, enduro, and off-road riding applications.
- Composite fiber protection layer: Positioned between the outer shell and EPS liner for added impact protection.
- Multi-density EPS liner: Six-piece liner with five densities helps manage impact energy in targeted areas.
- Rotational impact management: Low-friction coating helps reduce friction and rotational acceleration forces during certain oblique impacts.
- Ventilation system: Ten intake vents and seven exhaust ports promote airflow and heat transfer.
- Visor release system: Releases the visor at a predetermined force to help reduce neck loads during an impact.
- Emergency Release System: Removable cheek pads support safer and easier helmet removal after an incident.
- Comfort fit: Crown and cheek pads can be adjusted to help tailor the fit to the rider’s head.
- Hydration routing: Integrated channels in the cheek pads help accommodate hydration tubes.
- Secure closure: Stainless steel D-rings provide a firm and reliable fit.
- Sustainable comfort liner: Recycled materials help reduce the product’s environmental impact.