The Alpinestars SM3 Heat Helmet is designed for motocross, enduro, and off-road riding, delivering a balanced combination of impact protection, lightweight performance, and rider comfort. This Gloss Yellow Fluo/Black helmet is offered in size XS and features a thermo-injected outer shell made from an impact-resistant thermoplastic polymer blend. Varied shell thickness helps optimize protection while keeping the helmet comfortable for extended rides.
Inside, the Alpinestars SM3 uses a six-piece EPS liner with five densities to help manage impact energy across different areas of the helmet. A low-friction coating on the main EPS liner helps reduce rotational acceleration associated with certain oblique impacts. The inner and outer surfaces are engineered to help minimize the effects of angled impacts, while the crown and cheek pads allow the fit to be tailored to the rider. Removable cheek pads and the Emergency Release System support safer helmet removal after an incident.
Ten air inlets and seven exhaust ports promote efficient ventilation and heat transfer. The visor is shaped to direct airflow into the helmet ports, and its release system is designed to disengage at a predetermined force to help reduce strain on the rider’s neck during an impact. Recycled materials are used in the comfort liner to help reduce environmental impact, while integrated hydration tube channels in the cheek pads add convenience during demanding rides. A soft 1-inch chin strap and stainless steel D-rings provide a secure, comfortable fit.
The Alpinestars SM3 Helmet is intended for riders seeking dependable protection and ventilation for MX, enduro, and off-road applications. It includes the manufacturer part number and vendor part number 8301026-5011-XS.
Features:
- Size: XS
- Model: SM3 Heat
- Color: Gloss Yellow Fluo/Black
- Brand: Alpinestars
- Manufacturer Part Number: 8301026-5011-XS
- Vendor Part Number: 8301026-5011-XS
- Application: Motocross, enduro, and off-road riding
- Shell Construction: Thermo-injected impact-resistant thermoplastic with varied thickness for optimized protection and reduced weight
- Impact Protection: Composite fiber layer positioned between the outer shell and EPS liner
- EPS Liner: Six-piece, five-density construction for targeted impact absorption
- Rotational Impact Management: Low-friction coating helps reduce rotational acceleration during certain oblique impacts
- Ventilation: Ten intake ports and seven exhaust ports support airflow and heat transfer
- Visor: Airflow-directing design with a predetermined-force release system
- Fit System: Adjustable crown and cheek pads with removable cheek pads
- Emergency Removal: Emergency Release System supports safer cheek-pad removal while the helmet is worn
- Comfort: Recycled-material comfort liner and soft 1-inch chin strap
- Convenience: Integrated hydration tube channels in the cheek pads
- Retention: Stainless steel D-rings provide a secure fit