The Alpinestars SM3 Helmet in Falcon Purple, White, Black, and Pink Fluo is designed for motocross, enduro, and off-road riding. This XL helmet uses a thermo-injected shell made from an impact-resistant polymer blend with varied thicknesses to balance protection and reduced weight. The outer shell works with an intermediate composite-fiber layer and a multi-density EPS liner to help manage impact energy across key areas of the helmet. Manufacturer and vendor part number: 8300927-3222-XL.
The SM3 features a six-piece EPS liner incorporating five densities for targeted impact absorption and improved weight management. A low-friction coating on the inner EPS surface helps reduce rotational acceleration associated with certain oblique impacts, while the engineered inner and outer surfaces are designed to help minimize oblique-impact forces. Ten intake vents and seven exhaust ports promote airflow and heat exchange, and the visor directs air toward the ventilation system. The visor release system is calibrated to release at a predetermined force, helping reduce forces transferred to the rider’s neck during an impact.
Comfort and practical safety features support extended off-road use. The crown and cheek pads can be adjusted for a more personalized fit, while the removable cheek pads and Emergency Release System help enable safer helmet removal after an incident. The comfort liner uses recycled materials, and integrated hydration-tube channels in the cheek pads add convenience during demanding rides. A soft 25 mm chin strap and stainless steel D-rings provide a secure, comfortable fit. The Alpinestars SM3 is supplied in size XL and is suited for riders seeking comprehensive protection, ventilation, fit adjustment, and off-road performance.
Features:
- Shell Construction: Thermo-injected polymer shell with varied thicknesses for an optimized balance of impact protection and reduced weight.
- Riding Application: Designed for motocross, enduro, and off-road riding.
- Impact Protection: Composite-fiber intermediate layer and multi-density EPS liner help manage impact energy.
- EPS Liner: Six-piece liner with five densities for targeted impact absorption and weight management.
- Rotational Impact Management: Low-friction EPS coating helps reduce rotational acceleration from certain oblique impacts.
- Ventilation: Ten intake vents and seven exhaust ports promote airflow and heat transfer.
- Visor System: Air-directing visor with a calibrated release system designed to help reduce neck forces during impacts.
- Fit Adjustment: Crown and cheek pads allow the fit to be tailored to the rider’s head.
- Emergency Removal: Emergency Release System and removable cheek pads support safer helmet removal.
- Comfort Liner: Recycled-material comfort liner helps reduce environmental impact.
- Hydration Compatibility: Integrated hydration-tube channels are built into the cheek pads.
- Chin Strap: Soft 25 mm chin strap provides rider comfort and secure retention.
- Retention System: Stainless steel D-rings provide a tight, dependable fit.
- Part Number: Alpinestars manufacturer and vendor part number 8300927-3222-XL.