The Alpinestars SM3 Helmet in Falcon Purple/White/Black/Pink Fluo is designed for motocross, enduro, and off-road riders who need dependable impact protection, comfort, and ventilation. This medium helmet features a thermo-injected shell made from an impact-resistant thermoplastic polymer blend with varied thicknesses to help optimize strength and weight. The chin area is engineered for effective impact performance, while the overall construction delivers a balanced combination of protection and rider comfort. Alpinestars manufacturer part number 8300927-3222-M is also provided as the vendor part number for accurate product identification.
The SM3 uses a composite fiber layer positioned between the outer shell and the EPS liner to help enhance impact protection. Its six-piece, multi-density EPS liner uses five distinct densities to manage impact energy in targeted areas while helping reduce overall helmet weight. A low-friction coating on the inner EPS surface is designed to reduce friction between the liner and comfort padding, helping manage rotational forces associated with certain oblique impacts. The crown and cheek pads can be tailored to the rider’s head for a more personalized fit, and the removable cheek pads support easier helmet removal when needed.
Ten intake ports and seven exhaust ports promote airflow and heat exchange during demanding rides, while the visor is shaped to direct air toward the ventilation channels. The visor release system is engineered to release at a predetermined force to help reduce stress on the rider’s neck during an impact. Additional convenience and safety features include integrated hydration tube channels in the cheek pads, a soft 25 mm chin strap, secure stainless steel D-rings, and an Emergency Release System. The comfort liner uses recycled materials, supporting a lower-impact construction approach. Designed to fit adult riders seeking a medium off-road helmet, this Alpinestars SM3 combines practical adjustability, ventilation, and advanced protection for motocross, enduro, and trail applications.
Features:
- Alpinestars SM3 off-road helmet in Medium sizing with Falcon Purple/White/Black/Pink Fluo graphics
- Thermo-injected impact-resistant thermoplastic outer shell with varied thickness construction
- Composite fiber layer positioned between the outer shell and EPS liner for added impact protection
- Six-piece EPS liner with five densities for targeted impact absorption and weight management
- Low-friction EPS coating designed to help manage rotational forces during oblique impacts
- Adjustable crown and cheek pads provide a more tailored rider fit
- Ten intake ports and seven exhaust ports support airflow and heat transfer
- Visor directs air into the ventilation ports and includes a predetermined-force release system
- Removable cheek pads and Emergency Release System support safer helmet removal
- Integrated hydration tube channels add convenience for motocross, enduro, and off-road riding
- Soft textile chin strap with stainless steel D-rings provides secure, comfortable retention
- Manufacturer and vendor part number: 8300927-3222-M