The Alpinestars SM3 Heat helmet is designed for motocross, enduro, and off-road riding. This XL helmet features a gloss yellow fluo and black finish and uses a lightweight, impact-resistant thermoplastic outer shell with varied thickness construction. The SM3 combines targeted protection, ventilation, and rider comfort for demanding off-road applications. Manufacturer part number 8301026-5011-XL and vendor part number 8301026-5011-XL identify this specific configuration.
Alpinestars uses a composite fiber layer between the outer shell and EPS liner to enhance impact protection while helping control overall weight. The six-piece EPS liner incorporates five densities to manage impact energy in targeted areas. A low-friction coating on the inner EPS liner and engineered inner and outer surfaces help reduce rotational acceleration associated with certain oblique impacts. The visor release system is designed to release at a predetermined force to help reduce stress on the rider’s neck during an impact.
Ventilation is supported by ten intake ports and seven exhaust ports, while the visor helps direct airflow into the helmet. The crown and cheek pads allow the fit to be tailored to the rider, and the removable cheek pads support the integrated Emergency Release System for safer helmet removal. The comfort liner uses recycled materials, and integrated hydration tube channels in the cheek pads add convenience during extended rides. A soft 1-inch chin strap and stainless steel D-rings provide secure, comfortable retention.
The Alpinestars SM3 Heat XL is intended for riders seeking a performance-focused helmet for motocross, enduro, and off-road use. Always confirm proper helmet fit, riding application, and local safety requirements before use.
Features:
- Size: XL
- Model: SM3 Heat
- Brand: Alpinestars
- Manufacturer part number: 8301026-5011-XL
- Vendor part number: 8301026-5011-XL
- Color: Gloss yellow fluo and black
- Application: Motocross, enduro, and off-road riding
- Shell construction: Thermo-injected polymer blend with varied thickness for a balance of impact protection and reduced weight
- Outer shell: Lightweight, impact-resistant thermoplastic
- Impact management: Composite fiber layer positioned between the outer shell and EPS liner
- EPS liner: Six-piece design with five densities for targeted impact absorption
- Rotational impact management: Low-friction coating and engineered liner surfaces help 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 adjustment: Crown and cheek pads can be tailored to the rider’s head
- Emergency Release System: Removable cheek pads support safer helmet removal
- Comfort liner: Constructed with recycled materials
- Hydration compatibility: Integrated tube channels in the cheek pads
- Retention: Soft textile 1-inch chin strap with stainless steel D-rings